Where does Clean Energy Fuels Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Clean Energy Fuels Corp. ranks #45,710 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 Clean Energy Fuels Corp. hold?

Clean Energy Fuels Corp. holds 5 US utility patents granted between 2015 and 2018, spanning 5 technology areas.

What is Clean Energy Fuels Corp.'s Innovation Score?

Clean Energy Fuels Corp. has an Innovation Score of 22.1 out of 100 (10th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Clean Energy Fuels Corp.'s patent grant rate increasing or decreasing?

Clean Energy Fuels Corp.'s recent grant velocity is -100% 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 Clean Energy Fuels Corp.'s patents?

Clean Energy Fuels Corp.'s patents average 13.4 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 Clean Energy Fuels Corp. 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

Clean Energy Fuels Corp.

Q: What technology areas does Clean Energy Fuels Corp. focus on?

Clean Energy Fuels Corp.'s top technology area is F17C (Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases) with 4 patents, ranking #106 of 408 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 5 technology areas, recorded in grant years 2015–2018. 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: F17C (Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Clean ranks #45,710 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 5 technology areas.

#45,710
of 49,997 US assignees by volume: 10th percentile
by Innovation Score (22.1/100): 13.4
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R45710 · US Corporation #45,710 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #45,710/49,997
PHOTO-FINISH Civolution B V
CPC-NARROW F17C · 5 areas
INNOV-THIN 22.1/100
CLAIMS-RICH 13.4 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Civolution B.V. (±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 Clean’s 22.1 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 6.2 pts (28%) Velocity 0.0 pts (0%) Breadth 7.9 pts (36%) Claim depth 8.0 pts (36%)

Qualcomm Incorporated · highest

85
Clean Energy Fuels · this assignee

22
3D Lighting… · lowest

7

What this shows Clean's Innovation Score is 22.1/100 (10th percentile 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 Clean?

Each dot is one of Clean’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). Clean’s own 13.4 claims/patent is ABOVE the 12.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Clean's grants concentrate

Clean Energy Fuels Corp. is a focused PatentsView assignee: 5 CPC subclasses with 80% of grants classified under F17C (Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases). Peak complete grant year is 2018 (2 grants) versus a trough of 1 in 2015. By volume, Clean sits between Civolution B.V. and ClearH2O, Inc..

Civolution B V

5
Clariant

5
Clarke Industrial…

5
Clean Air Group

5
Cleanng

5
Cleanvolt Energy

5
Clear-cut Medical

5
Clearh2o

5
Clean Energy Fuels ◀

5

What this shows Clean holds 5 patents at rank #45,861, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Clean

By rank, the assignees closest to #45,861 in granted patent volume.

Leaders in F17C (Vessels FOR Containing OR Storing Compressed)

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

Clean's Innovation Score vs. every tracked assignee

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

22 10th percentile higher than 10% 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 · 2015–2018

Grants by year

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

View data table

Clean Energy Fuels Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	20.0%
2016	1	20.0%
2017	1	20.0%
2018	2	40.0%

Which technologies does Clean Energy Fuels Corp. patent most?

F17C - Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases 4

B65B - Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking 1

E06B - Fixed OR Movable Closures FOR Openings IN Buildings, Vehicles, Fences OR Like Enclosures IN General, e.g. Doors, Windows, Blinds, Gates 1

E04H - Buildings OR Like Structures FOR Particular PURPOSES; Swimming OR Splash Baths OR POOLS; MASTS; FENCING; Tents OR Canopies, IN General 1

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 1

Top 5 of 5 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

Clean Energy Fuels Corp.'s patent record in context - here's where to go next.

Clean Energy Fuels Corp.'s lead technology class is F17C (Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases), 80% of its portfolio - see every assignee active in that class. Explore F17C
Ranked #45,710 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Clean Energy Fuels Corp. against Civolution B.V., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 22.1/100 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.