USPTO 2015–2025 USPTO PatentsView US Corporation

Sundrop Fuels, Inc.

USPTO PatentsView assignee record - 12 granted patents across 18 technology areas, active 2015–2019. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

14.6

Avg claims per patent

-100%

5-year filing velocity

The verdict

Sundrop holds 12 US patents across 18 technology areas, rank #23,477 of 50,000 tracked assignees.

#23,477
of 50,000 US assignees by volume: Top 58%
by Innovation Score (32.6/100): 14.6
avg claims per patent: -100%
filing velocity, last 5 yrs

Portfolio overview

Sundrop Fuels, Inc. has been granted 12 US utility patents between 2015 and 2019, placing Sundrop Fuels, Inc. at rank #23,477 across all assignees tracked by PlainPatent. This portfolio spans 18 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.6 claims per patent with primary concentration in Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION). As a US Corporation, Sundrop Fuels, Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Sundrop sits between Straxcorp Pty Ltd (12 patents, rank #23,473) and Suzhou Institute Of Nano-tech And Nano-bionics, Chinese Academy Of Sciences (12 patents, rank #23,481) - the closest US assignees by grant volume. The composite Innovation Score of 32.6/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 0 grants, compared with 12 in the 2015–2019 window, a -100% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Sundrop Fuels, Inc.'s 14.6 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 18 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Sundrop Fuels, Inc. against peers pursuing similar technology classes.

Straxcorp Pty

12
Sturman Digital S…

12
Subsea 7 do Brasi…

12
Sumitomo Dainippo…

12
Superb AI

12
Surfacide

12
Surgimatix

12
Suzhou Institute…

12
Sundrop Fuels ◀

12

What this shows Sundrop holds 12 patents at rank #23,477, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sundrop

By rank, the assignees closest to #23,477 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

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

Sundrop's Innovation Score vs. every tracked assignee

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

33 Top 58% higher than 42% of 50,000 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 · 2015–2019

Grants by year

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

View data table

Sundrop Fuels, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	41.7%
2016	3	25.0%
2017	1	8.3%
2019	3	25.0%

Which technologies does Sundrop Fuels, Inc. patent most?

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 12

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 11

C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES ; CARBURETTING AIR OR OTHER GASES 10

C10G - CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION ; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES 9

C10L - FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS 8

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 8

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 7

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 6

C10K - PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE 6

Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION 3

F24S - SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS 2

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 2

D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR 2

C10B - DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS 2

F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 1

Top 15 of 18 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#23,477

Across all tracked assignees

Innovation Score

32.6 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Sundrop Fuels, Inc. hold?

Sundrop Fuels, Inc. holds 12 US granted patents filed between 2015 and 2019, spanning 18 technology areas.

What is Sundrop Fuels, Inc.'s Innovation Score?

Sundrop Fuels, Inc. has an Innovation Score of 32.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sundrop Fuels, Inc. focus on?

Sundrop Fuels, Inc.'s top technology area is Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION) with 12 patents. The company has filed patents in 18 CPC subclasses total.

Is Sundrop Fuels, Inc.'s patent filing rate increasing or decreasing?

Sundrop Fuels, Inc.'s recent filing velocity is -100% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

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

Sundrop Fuels, Inc.'s patents average 14.6 claims each. This falls within the standard range, providing solid legal coverage.

How is the Sundrop Fuels, 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.

How to use this portfolio

Sundrop's 12 grants land it in the top 58% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Sundrop ranks #23,477 of 50,000. Top 50 holders
Most of this portfolio concentrates in Y02E - see who else leads that technology area. Y02E leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.