Where does Quest Engines, LLC rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Quest Engines, LLC ranks #18,031 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 Quest Engines, LLC hold?

Quest Engines, LLC holds 16 US utility patents granted between 2019 and 2022, spanning 15 technology areas.

What is Quest Engines, LLC's Innovation Score?

Quest Engines, LLC has an Innovation Score of 38.0 out of 100 (top 42% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Quest Engines, LLC focus on?

Quest Engines, LLC's top technology area is F02B (Internal-combustion Piston ENGINES; Combustion Engines IN General) with 13 patents, ranking #77 of 496 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

Is Quest Engines, LLC's patent grant rate increasing or decreasing?

Quest Engines, LLC's recent grant velocity is +1400% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Quest Engines, LLC's patents?

Quest Engines, LLC's patents average 23.5 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 Quest Engines, LLC 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

Quest Engines, LLC

USPTO PatentsView assignee record - 16 granted patents across 15 technology areas, recorded in grant years 2019–2022. 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, Quest ranks #18,031 of 49,997 tracked US assignees by granted-patent volume, with 16 patents across 15 technology areas.

#18,031
of 49,997 US assignees by volume: Top 42%
by Innovation Score (38.0/100): 23.5
avg claims per patent: +1400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R18031 · US Corporation #18,031 · 16 grants

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

GRANTS-MICRO 16 grants
MID-PACK #18,031/49,997
PHOTO-FINISH Qcify
CPC-FOCUS F02B · 15 areas
INNOV-THIN 38.0/100
CLAIMS-DENSE 23.5 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +1400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Qcify, 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 Quest’s 38.0 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 9.8 pts (26%) Velocity 0.4 pts (1%) Breadth 13.7 pts (36%) Claim depth 14.1 pts (37%)

Qualcomm Incorporated · highest

85
Quest Engines · this assignee

38
3D Lighting… · lowest

7

What this shows Quest's Innovation Score is 38.0/100 (top 42% 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 Quest?

Each dot is one of Quest’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). Quest’s own 23.5 claims/patent is ABOVE the 15.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Quest's grants concentrate

Quest Engines, LLC is a focused PatentsView assignee: 15 CPC subclasses with 81.3% of grants classified under F02B (Internal-combustion Piston ENGINES; Combustion Engines IN General). Peak complete grant year is 2020 (7 grants) versus a trough of 1 in 2019. By volume, Quest sits between Qcify, Inc. and R2sonic, LLC.

Quest's three-year grant acceleration

Quest Engines, LLC shows 1 grants in 2022–2024 against only 15 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.

Qcify

16
Qiaokang Biotech…

16
Qingdao Hisense H…

16
Qualicaps

16
Qinterra AS

16
Qorvo Biotechnolo…

16
Quintus AB

16
R2sonic

16
Quest Engines ◀

16

What this shows Quest holds 16 patents at rank #18,025, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Quest

By rank, the assignees closest to #18,025 in granted patent volume.

Leaders in F02B (Internal-combustion Piston Engines)

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

Quest's Innovation Score vs. every tracked assignee

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

38 Top 42% higher than 58% 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 · 2019–2022

Grants by year

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

View data table

Quest Engines, LLC patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	6.3%
2020	7	43.8%
2021	7	43.8%
2022	1	6.3%

Which technologies does Quest Engines, LLC patent most?

F02B - Internal-combustion Piston ENGINES; Combustion Engines IN General 13

F02F - Cylinders, Pistons OR Casings, FOR Combustion ENGINES; Arrangements OF Sealings IN Combustion Engines 10

Y02T - Climate Change Mitigation Technologies Related TO Transportation 6

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 5

F01L - Cyclically Operating Valves FOR Machines OR Engines 5

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

F15D - Fluid Dynamics, i.e. Methods OR Means FOR Influencing THE Flow OF Gases OR Liquids 3

F01C - Rotary-piston OR Oscillating-piston Machines OR Engines 3

F01M - Lubricating OF Machines OR Engines IN GENERAL; Lubricating Internal Combustion ENGINES; Crankcase Ventilating 3

F04C - Rotary-piston, OR Oscillating-piston, Positive-displacement Machines FOR Liquids ; Rotary-piston, OR Oscillating-piston, Positive-displacement Pumps 2

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 2

F16J - Pistons ; CYLINDERS; Sealings 2

H04R - Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems 2

F01B - Machines OR Engines, IN General OR OF Positive-displacement Type, e.g. Steam Engines 1

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

Quest Engines, LLC's patent record in context - here's where to go next.

Quest Engines, LLC's lead technology class is F02B (Internal-combustion Piston ENGINES; Combustion Engines IN General), 81.3% of its portfolio - see every assignee active in that class. Explore F02B
Ranked #18,031 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Quest Engines, LLC against Qcify, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.0/100 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.