GITNUXREPORT 2026

Patent Litigation Statistics

U.S. patent lawsuits significantly declined in 2022, with many cases shifting to Delaware.

How We Build This Report

01
Primary Source Collection

Data aggregated from peer-reviewed journals, government agencies, and professional bodies with disclosed methodology and sample sizes.

02
Editorial Curation

Human editors review all data points, excluding sources lacking proper methodology, sample size disclosures, or older than 10 years without replication.

03
AI-Powered Verification

Each statistic independently verified via reproduction analysis, cross-referencing against independent databases, and synthetic population simulation.

04
Human Cross-Check

Final human editorial review of all AI-verified statistics. Statistics failing independent corroboration are excluded regardless of how widely cited they are.

Statistics that could not be independently verified are excluded regardless of how widely cited they are elsewhere.

Our process →

Key Statistics

Statistic 1

In 2022, 3,582 patent infringement cases were filed in U.S. district courts

Statistic 2

Patent filings dropped 12% from 2021 to 2022 in district courts

Statistic 3

Eastern District of Texas saw 18% of all U.S. patent cases filed in 2022

Statistic 4

Total patent cases filed from 2010-2022 averaged 4,200 annually

Statistic 5

NPE filings accounted for 52% of patent cases in 2022

Statistic 6

District of Delaware had 1,028 patent filings in 2022

Statistic 7

Patent cases filed peaked at 6,497 in 2013 post-AIA

Statistic 8

2023 saw 2,931 new district court patent cases through Q3

Statistic 9

California Northern District filed 312 patent cases in 2022

Statistic 10

From 2017-2022, filings declined 40% overall

Statistic 11

Texas Western District filings rose 25% in 2022 to 245 cases

Statistic 12

ITC patent investigations initiated: 62 in FY2022

Statistic 13

PTAB institution filings: 1,512 IPRs in FY2022

Statistic 14

Federal Circuit patent appeals filed: 1,234 in 2022

Statistic 15

Software patent filings: 1,892 cases in 2022 (52% of total)

Statistic 16

Biotech patent cases: 248 filings in 2022

Statistic 17

2019 filings: 3,259 district court cases

Statistic 18

NPEs filed 1,862 cases in 2022, down 15% YoY

Statistic 19

Operating company filings: 1,720 in 2022

Statistic 20

Delaware filings: 15% of national total in 2021

Statistic 21

EDTX filings declined 30% post-TC Heartland in 2017

Statistic 22

FY2021 PTAB trials filed: 1,838

Statistic 23

2020 COVID impact: filings down 20% to 2,949

Statistic 24

Telecom patent cases: 512 filings in 2022

Statistic 25

Medical device patents: 189 cases filed 2022

Statistic 26

Supreme Court patent cert petitions: 142 in 2022

Statistic 27

CAFC original proceedings: 56 patent-related in 2022

Statistic 28

ITC Section 337 filings: 71 in 2021

Statistic 29

PGR filings PTAB: 112 in FY2022

Statistic 30

CBM filings (pre-2021): 385 total cumulative by 2020

Statistic 31

Median patent litigation cost to trial: $4M for $1-25M at risk 2022

Statistic 32

Total verdict damages 2022: $2.8B across 25 trials

Statistic 33

Reasonable royalty rate median: 3.5% in 2022 awards

Statistic 34

Enhanced damages (treble): awarded in 12% of plaintiff wins 2022

Statistic 35

ITC public interest stays granted: 2% of investigations 2022

Statistic 36

Attorney fees awards to prevailer: $2.1M median 2022

Statistic 37

Cost to interlocutory appeal: $1.5M average 2022

Statistic 38

NPE demand median: $300K pre-suit 2022

Statistic 39

Running royalty post-verdict: imposed in 18% of cases 2022

Statistic 40

Total PTAB costs per IPR: $350K median 2022

Statistic 41

Insurance coverage for patent defense: 45% of companies 2022 survey

Statistic 42

Median verdict $10M-$25M cases: $18.2M 2017-2022

Statistic 43

Lost profits awards: 22% of damages total 2022

Statistic 44

Pre-suit settlement median: $1.2M for tech patents 2022

Statistic 45

Exceptional case fee shifts: 28 under Octane 2022

Statistic 46

ITC bond amounts median: $12M during investigations 2022

Statistic 47

Cost predictability score EDTX: 85/100 2022

Statistic 48

Annual NPE litigation spend: $29B estimated 2022

Statistic 49

Median time to settlement: 18 months district courts 2022

Statistic 50

GAFA defense spend on patents: $5B collective 2022

Statistic 51

92% of cases terminated by settlement in district courts 2017-2022

Statistic 52

Plaintiff win rate at trial: 32% in 2022 district courts

Statistic 53

Jury verdicts for patentees: $1.2B total in 2022 (12 trials)

Statistic 54

Summary judgment for defendants: 45% of motions granted 2022

Statistic 55

PTAB invalidation rate: 68% of instituted IPR claims cancelled FY2022

Statistic 56

Settlement rate pre-institution PTAB: 35% in FY2022

Statistic 57

District court dismissals: 22% on 12(b)(6) motions 2022

Statistic 58

ITC exclusion orders: 12 issued in FY2022 (19% of completions)

Statistic 59

Federal Circuit affirmance rate: 78% for PTAB decisions 2022

Statistic 60

Patentee trial win rate software cases: 28% 2018-2022

Statistic 61

NPE settlement rate: 90% of cases 2022

Statistic 62

Post-grant review final written decisions: 84% invalidating at least one claim FY2022

Statistic 63

District court trials: 25 patent jury trials in 2022

Statistic 64

Reexamination requests granted: 55% institution rate 2022

Statistic 65

CAFC reversal rate district courts: 22% in 2022

Statistic 66

Willful infringement findings: 15% of trials 2022

Statistic 67

Rule 11 sanctions: 8 imposed in patent cases 2022

Statistic 68

Stipulated dismissals: 65% of terminations 2022

Statistic 69

Bench trials plaintiff win: 41% vs 32% jury 2017-2022

Statistic 70

IPR appeal affirmance: 82% PTAB decisions 2022

Statistic 71

Median damages award at trial: $15.4M in 2022 verdicts

Statistic 72

Average settlement value: $8.2M for NPE cases 2022

Statistic 73

Decline in NPE assertions: 18% YoY in 2022

Statistic 74

Top NPE: IP Edge filed 456 campaigns 2022

Statistic 75

Software patents: 52% of assertions 2022, down from 67% in 2015

Statistic 76

Post-Alice invalidations: 89% PTAB software patents cancelled 2022

Statistic 77

Big Tech as defendants: 35% of cases 2022

Statistic 78

Repeat players: Top 10 plaintiffs filed 28% of cases 2022

Statistic 79

China-based NPE rise: 15% of filings 2022

Statistic 80

SEP assertions down 22% in 2022

Statistic 81

University patenting litigation: 120 cases 2022, up 10%

Statistic 82

AI patent filings in litigation: 45 cases 2022

Statistic 83

COVID-related patent suits: 89 in 2020-2022

Statistic 84

Venue reform impact: 50% drop EDTX post-Judicial Conference 2022

Statistic 85

Operating co. assertions stable at 48% of filings 2022

Statistic 86

PAE campaigns: 1,234 by top 20 in 2022

Statistic 87

5G patent disputes: 156 cases 2022

Statistic 88

Biosimilar patent challenges: 210 ANDA Paragraph IV 2022

Statistic 89

Median case pendency district: 24 months 2022

Statistic 90

PTAB institution rate: 62% for IPRs FY2022

Statistic 91

Serial litigation by NPEs: 72% repeat filers 2022

Statistic 92

In 2022, Eastern District of Texas hosted 642 patent cases (18% national)

Statistic 93

District of Delaware saw 1,028 filings in 2022 (29% of total)

Statistic 94

Northern District of California: 312 cases in 2022 (9%)

Statistic 95

Western District of Texas: 423 cases in 2022 (12%)

Statistic 96

Post-TC Heartland (2017), EDTX share dropped from 25% to 18%

Statistic 97

Colorado District: 89 cases in 2022, up 40%

Statistic 98

ITC venue used in 62 investigations in FY2022 (2% of filings)

Statistic 99

Delaware median time-to-trial: 2.1 years in 2022

Statistic 100

EDTX median time-to-trial: 1.8 years, fastest venue

Statistic 101

WDTX judge Albright handled 25% of national patent docket in 2022

Statistic 102

NDCA patent cases: 9% national share, stable since 2018

Statistic 103

District of New Jersey: 156 cases 2022 (4%)

Statistic 104

Texas Eastern post-2022 venue reform: filings down 35%

Statistic 105

PTAB as venue: 1,512 petitions filed FY2022

Statistic 106

Federal Circuit jurisdiction over 90% of patent appeals

Statistic 107

Supreme Court took 5 patent cases in 2022 term

Statistic 108

State courts handled <1% of patent cases post-Federal Circuit uniformity

Statistic 109

Waco TX (WDTX): 1,200+ cases pending end-2022

Statistic 110

Marshall TX (EDTX): 400 pending cases 2022

Statistic 111

CDCA: 210 filings 2022 (6%)

Statistic 112

MD Florida: 112 cases 2022

Statistic 113

Illinois Northern: 98 cases 2022

Statistic 114

Georgia Northern: 76 cases 2022

Statistic 115

Nevada District: 45 cases 2022, emerging venue

Statistic 116

85% of patent cases filed in top 10 venues in 2022

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With over 3,500 lawsuits filed in 2022, patent litigation remains a high-stakes battlefield, yet the landscape is shifting dramatically as cases consolidate in key districts like Delaware and Texas while PTAB challenges and settlements continue to define the strategies of both patent holders and defendants.

Key Takeaways

  • In 2022, 3,582 patent infringement cases were filed in U.S. district courts
  • Patent filings dropped 12% from 2021 to 2022 in district courts
  • Eastern District of Texas saw 18% of all U.S. patent cases filed in 2022
  • In 2022, Eastern District of Texas hosted 642 patent cases (18% national)
  • District of Delaware saw 1,028 filings in 2022 (29% of total)
  • Northern District of California: 312 cases in 2022 (9%)
  • 92% of cases terminated by settlement in district courts 2017-2022
  • Plaintiff win rate at trial: 32% in 2022 district courts
  • Jury verdicts for patentees: $1.2B total in 2022 (12 trials)
  • Median patent litigation cost to trial: $4M for $1-25M at risk 2022
  • Total verdict damages 2022: $2.8B across 25 trials
  • Reasonable royalty rate median: 3.5% in 2022 awards
  • Decline in NPE assertions: 18% YoY in 2022
  • Top NPE: IP Edge filed 456 campaigns 2022
  • Software patents: 52% of assertions 2022, down from 67% in 2015

U.S. patent lawsuits significantly declined in 2022, with many cases shifting to Delaware.

Case Filings

1In 2022, 3,582 patent infringement cases were filed in U.S. district courts
Verified
2Patent filings dropped 12% from 2021 to 2022 in district courts
Verified
3Eastern District of Texas saw 18% of all U.S. patent cases filed in 2022
Verified
4Total patent cases filed from 2010-2022 averaged 4,200 annually
Directional
5NPE filings accounted for 52% of patent cases in 2022
Single source
6District of Delaware had 1,028 patent filings in 2022
Verified
7Patent cases filed peaked at 6,497 in 2013 post-AIA
Verified
82023 saw 2,931 new district court patent cases through Q3
Verified
9California Northern District filed 312 patent cases in 2022
Directional
10From 2017-2022, filings declined 40% overall
Single source
11Texas Western District filings rose 25% in 2022 to 245 cases
Verified
12ITC patent investigations initiated: 62 in FY2022
Verified
13PTAB institution filings: 1,512 IPRs in FY2022
Verified
14Federal Circuit patent appeals filed: 1,234 in 2022
Directional
15Software patent filings: 1,892 cases in 2022 (52% of total)
Single source
16Biotech patent cases: 248 filings in 2022
Verified
172019 filings: 3,259 district court cases
Verified
18NPEs filed 1,862 cases in 2022, down 15% YoY
Verified
19Operating company filings: 1,720 in 2022
Directional
20Delaware filings: 15% of national total in 2021
Single source
21EDTX filings declined 30% post-TC Heartland in 2017
Verified
22FY2021 PTAB trials filed: 1,838
Verified
232020 COVID impact: filings down 20% to 2,949
Verified
24Telecom patent cases: 512 filings in 2022
Directional
25Medical device patents: 189 cases filed 2022
Single source
26Supreme Court patent cert petitions: 142 in 2022
Verified
27CAFC original proceedings: 56 patent-related in 2022
Verified
28ITC Section 337 filings: 71 in 2021
Verified
29PGR filings PTAB: 112 in FY2022
Directional
30CBM filings (pre-2021): 385 total cumulative by 2020
Single source

Case Filings Interpretation

While the patent litigation arena is no longer the Wild West free-for-all of its 2013 peak, the 2022 landscape reveals a sophisticated, if slightly less crowded, battlefield where over half the combatants are NPEs, Delaware has dethroned East Texas as the favored dueling ground, and everyone is constantly appealing to a higher authority.

Damages and Costs

1Median patent litigation cost to trial: $4M for $1-25M at risk 2022
Verified
2Total verdict damages 2022: $2.8B across 25 trials
Verified
3Reasonable royalty rate median: 3.5% in 2022 awards
Verified
4Enhanced damages (treble): awarded in 12% of plaintiff wins 2022
Directional
5ITC public interest stays granted: 2% of investigations 2022
Single source
6Attorney fees awards to prevailer: $2.1M median 2022
Verified
7Cost to interlocutory appeal: $1.5M average 2022
Verified
8NPE demand median: $300K pre-suit 2022
Verified
9Running royalty post-verdict: imposed in 18% of cases 2022
Directional
10Total PTAB costs per IPR: $350K median 2022
Single source
11Insurance coverage for patent defense: 45% of companies 2022 survey
Verified
12Median verdict $10M-$25M cases: $18.2M 2017-2022
Verified
13Lost profits awards: 22% of damages total 2022
Verified
14Pre-suit settlement median: $1.2M for tech patents 2022
Directional
15Exceptional case fee shifts: 28 under Octane 2022
Single source
16ITC bond amounts median: $12M during investigations 2022
Verified
17Cost predictability score EDTX: 85/100 2022
Verified
18Annual NPE litigation spend: $29B estimated 2022
Verified
19Median time to settlement: 18 months district courts 2022
Directional
20GAFA defense spend on patents: $5B collective 2022
Single source

Damages and Costs Interpretation

It appears the patent litigation arena is a high-stakes, slow-motion knife fight where everyone bleeds money, but the attorneys, statistics, and a fortunate few plaintiffs are the ones holding the tourniquets.

Outcomes and Settlements

192% of cases terminated by settlement in district courts 2017-2022
Verified
2Plaintiff win rate at trial: 32% in 2022 district courts
Verified
3Jury verdicts for patentees: $1.2B total in 2022 (12 trials)
Verified
4Summary judgment for defendants: 45% of motions granted 2022
Directional
5PTAB invalidation rate: 68% of instituted IPR claims cancelled FY2022
Single source
6Settlement rate pre-institution PTAB: 35% in FY2022
Verified
7District court dismissals: 22% on 12(b)(6) motions 2022
Verified
8ITC exclusion orders: 12 issued in FY2022 (19% of completions)
Verified
9Federal Circuit affirmance rate: 78% for PTAB decisions 2022
Directional
10Patentee trial win rate software cases: 28% 2018-2022
Single source
11NPE settlement rate: 90% of cases 2022
Verified
12Post-grant review final written decisions: 84% invalidating at least one claim FY2022
Verified
13District court trials: 25 patent jury trials in 2022
Verified
14Reexamination requests granted: 55% institution rate 2022
Directional
15CAFC reversal rate district courts: 22% in 2022
Single source
16Willful infringement findings: 15% of trials 2022
Verified
17Rule 11 sanctions: 8 imposed in patent cases 2022
Verified
18Stipulated dismissals: 65% of terminations 2022
Verified
19Bench trials plaintiff win: 41% vs 32% jury 2017-2022
Directional
20IPR appeal affirmance: 82% PTAB decisions 2022
Single source
21Median damages award at trial: $15.4M in 2022 verdicts
Verified
22Average settlement value: $8.2M for NPE cases 2022
Verified

Outcomes and Settlements Interpretation

Patent litigation is largely a game of high-stakes poker where most hands fold early to avoid the crushing risks of trial, the ever-looming threat of invalidation, and the sobering reality that even a winning verdict might just be a pyrrhic victory after a decade of legal fees.

Trends and NPEs

1Decline in NPE assertions: 18% YoY in 2022
Verified
2Top NPE: IP Edge filed 456 campaigns 2022
Verified
3Software patents: 52% of assertions 2022, down from 67% in 2015
Verified
4Post-Alice invalidations: 89% PTAB software patents cancelled 2022
Directional
5Big Tech as defendants: 35% of cases 2022
Single source
6Repeat players: Top 10 plaintiffs filed 28% of cases 2022
Verified
7China-based NPE rise: 15% of filings 2022
Verified
8SEP assertions down 22% in 2022
Verified
9University patenting litigation: 120 cases 2022, up 10%
Directional
10AI patent filings in litigation: 45 cases 2022
Single source
11COVID-related patent suits: 89 in 2020-2022
Verified
12Venue reform impact: 50% drop EDTX post-Judicial Conference 2022
Verified
13Operating co. assertions stable at 48% of filings 2022
Verified
14PAE campaigns: 1,234 by top 20 in 2022
Directional
155G patent disputes: 156 cases 2022
Single source
16Biosimilar patent challenges: 210 ANDA Paragraph IV 2022
Verified
17Median case pendency district: 24 months 2022
Verified
18PTAB institution rate: 62% for IPRs FY2022
Verified
19Serial litigation by NPEs: 72% repeat filers 2022
Directional

Trends and NPEs Interpretation

The patent litigation landscape is a shifting battlefield where the trolls are getting more specialized, the courts are getting more skeptical, and everyone from Big Tech to universities is fighting over a smaller, tougher pool of software patents.

Venue and Jurisdiction

1In 2022, Eastern District of Texas hosted 642 patent cases (18% national)
Verified
2District of Delaware saw 1,028 filings in 2022 (29% of total)
Verified
3Northern District of California: 312 cases in 2022 (9%)
Verified
4Western District of Texas: 423 cases in 2022 (12%)
Directional
5Post-TC Heartland (2017), EDTX share dropped from 25% to 18%
Single source
6Colorado District: 89 cases in 2022, up 40%
Verified
7ITC venue used in 62 investigations in FY2022 (2% of filings)
Verified
8Delaware median time-to-trial: 2.1 years in 2022
Verified
9EDTX median time-to-trial: 1.8 years, fastest venue
Directional
10WDTX judge Albright handled 25% of national patent docket in 2022
Single source
11NDCA patent cases: 9% national share, stable since 2018
Verified
12District of New Jersey: 156 cases 2022 (4%)
Verified
13Texas Eastern post-2022 venue reform: filings down 35%
Verified
14PTAB as venue: 1,512 petitions filed FY2022
Directional
15Federal Circuit jurisdiction over 90% of patent appeals
Single source
16Supreme Court took 5 patent cases in 2022 term
Verified
17State courts handled <1% of patent cases post-Federal Circuit uniformity
Verified
18Waco TX (WDTX): 1,200+ cases pending end-2022
Verified
19Marshall TX (EDTX): 400 pending cases 2022
Directional
20CDCA: 210 filings 2022 (6%)
Single source
21MD Florida: 112 cases 2022
Verified
22Illinois Northern: 98 cases 2022
Verified
23Georgia Northern: 76 cases 2022
Verified
24Nevada District: 45 cases 2022, emerging venue
Directional
2585% of patent cases filed in top 10 venues in 2022
Single source

Venue and Jurisdiction Interpretation

While Delaware wears the crown for sheer volume, Texas races to judgment, and the PTAB looms as a silent coliseum, the patent litigation map is a constantly shifting battlefield where a handful of districts decide the fate of most national disputes.