Where does EtaGen, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), EtaGen, Inc. ranks #13,976 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does EtaGen, Inc. hold?

EtaGen, Inc. holds 21 US utility patents granted between 2015 and 2020, spanning 15 technology areas.

What is EtaGen, Inc.'s Innovation Score?

EtaGen, Inc. has an Innovation Score of 39.4 out of 100 (top 38% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does EtaGen, Inc. focus on?

EtaGen, Inc.'s top technology area is F02B (Internal-combustion Piston ENGINES; Combustion Engines IN General) with 15 patents, ranking #70 of 496 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

Is EtaGen, Inc.'s patent grant rate increasing or decreasing?

EtaGen, Inc.'s recent grant velocity is -95% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for EtaGen, Inc.'s patents?

EtaGen, Inc.'s patents average 25.3 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the EtaGen, Inc. patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView US Corporation

EtaGen, Inc.

USPTO PatentsView assignee record - 21 granted patents across 15 technology areas, recorded in grant years 2015–2020. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: F02B (Internal-combustion Piston ENGINES; Combustion Engines IN General).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Etagen ranks #13,976 of 49,997 tracked US assignees by granted-patent volume, with 21 patents across 15 technology areas.

#13,976
of 49,997 US assignees by volume: Top 38%
by Innovation Score (39.4/100): 25.3
avg claims per patent: -95%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R13976 · US Corporation #13,976 · 21 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-DENSE · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 21 grants
MID-PACK #13,976/49,997
PHOTO-FINISH Enable Injections
CPC-FOCUS F02B · 15 areas
INNOV-THIN 39.4/100
CLAIMS-DENSE 25.3 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -95% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Enable Injections, Inc. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Etagen’s 39.4 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 10.7 pts (27%) Velocity 0.0 pts (0%) Breadth 13.7 pts (35%) Claim depth 15.0 pts (38%)

Qualcomm Incorporated · highest

85
EtaGen · this assignee

39
3D Lighting… · lowest

7

What this shows Etagen's Innovation Score is 39.4/100 (top 38% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Etagen?

Each dot is one of Etagen’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Etagen’s own 25.3 claims/patent is ABOVE the 13.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Etagen vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Etagen's grants concentrate

EtaGen, Inc. is a focused PatentsView assignee: 15 CPC subclasses with 71.4% of grants classified under F02B (Internal-combustion Piston ENGINES; Combustion Engines IN General). Peak complete grant year is 2019 (9 grants) versus a trough of 1 in 2020. By volume, Etagen sits between Enable Injections, Inc. and Exegy Incorporated.

Enable Injections

21
Energy Full

21
Epivax

21
Erber

21
Evonik Oxeno & KG

21
Exabeam

21
Excelitas Canada

21
Exegy Incorporated

21
Etagen ◀

21

What this shows EtaGen holds 21 patents at rank #13,977, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near EtaGen

By rank, the assignees closest to #13,977 in granted patent volume.

Leaders in F02B (Internal-combustion Piston Engines)

Other assignees with the most granted patents in EtaGen's primary technology class.

Etagen's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

39 Top 38% higher than 62% of 49,997 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2015–2020

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

EtaGen, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	19.0%
2017	3	14.3%
2018	4	19.0%
2019	9	42.9%
2020	1	4.8%

Which technologies does EtaGen, Inc. patent most?

F02B - Internal-combustion Piston ENGINES; Combustion Engines IN General 15

F16J - Pistons ; CYLINDERS; Sealings 9

F01B - Machines OR Engines, IN General OR OF Positive-displacement Type, e.g. Steam Engines 9

F02F - Cylinders, Pistons OR Casings, FOR Combustion ENGINES; Arrangements OF Sealings IN Combustion Engines 7

H02K - Dynamo-electric Machines 7

F02D - Controlling Combustion Engines 3

Y02T - Climate Change Mitigation Technologies Related TO Transportation 3

F01P - Cooling OF Machines OR Engines IN GENERAL; Cooling OF Internal-combustion Engines 2

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 2

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

F16F - SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration 1

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 1

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 1

H02H - Emergency Protective Circuit Arrangements 1

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 1

Top 15 of 15 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

EtaGen, Inc.'s patent record in context - here's where to go next.

EtaGen, Inc.'s lead technology class is F02B (Internal-combustion Piston ENGINES; Combustion Engines IN General), 71.4% of its portfolio - see every assignee active in that class. Explore F02B
Ranked #13,976 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare EtaGen, Inc. against Enable Injections, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 39.4/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent , US Patent Intelligence Editorial Process · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.