Where does Mainspring Energy, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Mainspring Energy, Inc. ranks #7,437 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 Mainspring Energy, Inc. hold?

Mainspring Energy, Inc. holds 44 US utility patents granted between 2020 and 2025, spanning 16 technology areas.

What is Mainspring Energy, Inc.'s Innovation Score?

Mainspring Energy, Inc. has an Innovation Score of 53.7 out of 100 (top 8% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Mainspring Energy, Inc. focus on?

Mainspring Energy, Inc.'s top technology area is F02B (Internal-combustion Piston ENGINES; Combustion Engines IN General) with 26 patents, ranking #41 of 496 assignees active in that subclass. Grants appear in 16 CPC subclasses total.

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

Insufficient historical data is available to calculate a velocity trend for Mainspring Energy, Inc..

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

Mainspring Energy, Inc.'s patents average 21.9 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 Mainspring Energy, 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

Mainspring Energy, Inc.

USPTO PatentsView assignee record - 44 granted patents across 16 technology areas, recorded in grant years 2020–2025. 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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The verdict

According to USPTO PatentsView, Mainspring ranks #7,437 of 49,997 tracked US assignees by granted-patent volume, with 44 patents across 16 technology areas.

#7,437
of 49,997 US assignees by volume: Top 8%
by Innovation Score (53.7/100): 21.9
avg claims per patent

USPTO PatentsView assignee plate

Corpus R7437 · US Corporation #7,437 · 44 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-DENSE · TYPE-USCORP · SPAN-YRS · BOOK-RICH

GRANTS-SMALL 44 grants
UPPER-Q #7,437/49,997
PHOTO-FINISH Lunatech
CPC-FOCUS F02B · 16 areas
INNOV-PAR 53.7/100
CLAIMS-DENSE 21.9 claims/avg
TYPE-USCORP US Corporation
SPAN-YRS 2020–2025 · 6y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Lunatech, LLC (±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 Mainspring’s 53.7 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 13.1 pts (24%) Velocity 13.3 pts (25%) Breadth 14.1 pts (26%) Claim depth 13.1 pts (24%)

Qualcomm Incorporated · highest

85
IMS Gear SE & Kgaa · near

54
Voyager Therapeutics · near

54
AMS Sensors… · near

54
Dassault Systemes · near

54
Mainspring Energy · this assignee

54
3D Lighting… · lowest

7

What this shows Mainspring's Innovation Score is 53.7/100 (top 8% 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 Mainspring?

Each dot is one of Mainspring’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). Mainspring’s own 21.9 claims/patent is ABOVE the 13.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Mainspring's grants concentrate

Mainspring Energy, Inc. is a focused PatentsView assignee: 16 CPC subclasses with 59.1% of grants classified under F02B (Internal-combustion Piston ENGINES; Combustion Engines IN General). Peak complete grant year is 2022 (9 grants) versus a trough of 6 in 2020. By volume, Mainspring sits between Lunatech, LLC and N.E. Chemcat Corporation.

Mainspring's three-year grant acceleration

Mainspring Energy, Inc. shows 26 grants in 2022–2024 against only 13 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Lunatech

44
Mega Brands

44
MIE University

44
Mjnn

44
Medical Diagnosti…

44
Memory

44
Morgan State Univ…

44
N E Chemcat

44
Mainspring Energy ◀

44

What this shows Mainspring holds 44 patents at rank #7,440, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Mainspring

By rank, the assignees closest to #7,440 in granted patent volume.

Leaders in F02B (Internal-combustion Piston Engines)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Mainspring, neither rank-band nor same-CPC leaders (those blocks stay above). In F02B (Internal-combustion Piston Engines), Mainspring ranks #41 of 496 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (54 here).

AMS Sensors Singapore PTE. Ltd. 54 Dassault Systemes 54 Voyager Therapeutics, Inc. 54 IMS Gear SE & Co. Kgaa 54

Mainspring's Innovation Score vs. every tracked assignee

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

54 Top 8% higher than 92% 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 · 2020–2025

Grants by year

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

View data table

Mainspring Energy, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	6	13.6%
2021	7	15.9%
2022	9	20.5%
2023	8	18.2%
2024	9	20.5%
2025partial year	5	11.4%

Which technologies does Mainspring Energy, Inc. patent most?

F02B - Internal-combustion Piston ENGINES; Combustion Engines IN General 26

H02K - Dynamo-electric Machines 20

F16J - Pistons ; CYLINDERS; Sealings 18

F01B - Machines OR Engines, IN General OR OF Positive-displacement Type, e.g. Steam Engines 12

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 9

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

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 6

F02D - Controlling Combustion Engines 5

H02H - Emergency Protective Circuit Arrangements 4

Y02T - Climate Change Mitigation Technologies Related TO Transportation 4

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 3

F02G - HOT GAS OR Combustion-product Positive-displacement Engine Plants ; USE OF Waste Heat OF Combustion ENGINES; NOT Otherwise Provided FOR 3

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 3

F16F - SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration 2

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 2

Top 15 of 16 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

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

Mainspring Energy, Inc.'s lead technology class is F02B (Internal-combustion Piston ENGINES; Combustion Engines IN General), 59.1% of its portfolio - see every assignee active in that class. Explore F02B
Ranked #7,437 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Mainspring Energy, Inc. against Lunatech, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 53.7/100 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.