USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Chinook End-stage Recycling Limited

USPTO PatentsView assignee record - 6 granted patents across 14 technology areas, active 2016–2018. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C10J (PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES ; CARBURETTING AIR OR OTHER GASES).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

21.8

Avg claims per patent

-100%

5-year filing velocity

The verdict

Chinook holds 6 US patents across 14 technology areas, rank #39,556 of 50,000 tracked assignees.

#39,556
of 50,000 US assignees by volume: Top 57%
by Innovation Score (33.0/100): 21.8
avg claims per patent: -100%
filing velocity, last 5 yrs

Portfolio overview

Chinook End-stage Recycling Limited has been granted 6 US utility patents between 2016 and 2018, placing Chinook End-stage Recycling Limited at rank #39,556 across all assignees tracked by PlainPatent. This portfolio spans 14 distinct Cooperative Patent Classification (CPC) subclasses, averaging 21.8 claims per patent with primary concentration in C10J (PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES ; CARBURETTING AIR OR OTHER GASES). As a Foreign Corporation, Chinook End-stage Recycling Limited is one of the more focused assignees in the PatentsView dataset. By volume, Chinook sits between Children's Hospital Medical Center Of Akron (6 patents, rank #39,552) and Chondrocyte, Llc (6 patents, rank #39,560) - the closest US assignees by grant volume. The composite Innovation Score of 33.0/100 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 6 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 Foreign 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. Chinook End-stage Recycling Limited's 21.8 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while concentration in 14 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Chinook End-stage Recycling Limited against peers pursuing similar technology classes.

Children's Hospit…

6
Children's Medica…

6
China National In…

6
China Nuclear Pow…

6
Chioccoli

6
Chips Unlimited

6
Chirp Products

6
Chondrocyte

6
Chinook End-stage… ◀

6

What this shows Chinook holds 6 patents at rank #39,556, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chinook

By rank, the assignees closest to #39,556 in granted patent volume.

Leaders in C10J (Production OF Producer GAS)

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

Chinook's Innovation Score vs. every tracked assignee

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

33 Top 57% higher than 43% 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 · 2016–2018

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Chinook End-stage Recycling Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	3	50.0%
2017	2	33.3%
2018	1	16.7%

Which technologies does Chinook End-stage Recycling Limited patent most?

C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES ; CARBURETTING AIR OR OTHER GASES 4

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 3

C10K - PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE 3

F23G - CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION 2

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 2

F01K - STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES 2

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

F02C - GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS 1

C22B - PRODUCTION AND REFINING OF METALS ; PRETREATMENT OF RAW MATERIALS 1

F02M - SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 1

F26B - DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM 1

F27B - FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS 1

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 1

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1

Top 14 of 14 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Complex

Velocity Declining

Where it ranks

Overall rank by patents

#39,556

Across all tracked assignees

Innovation Score

33.0 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 Chinook End-stage Recycling Limited hold?

Chinook End-stage Recycling Limited holds 6 US granted patents filed between 2016 and 2018, spanning 14 technology areas.

What is Chinook End-stage Recycling Limited's Innovation Score?

Chinook End-stage Recycling Limited has an Innovation Score of 33.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Chinook End-stage Recycling Limited focus on?

Chinook End-stage Recycling Limited's top technology area is C10J (PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES ; CARBURETTING AIR OR OTHER GASES) with 4 patents. The company has filed patents in 14 CPC subclasses total.

Is Chinook End-stage Recycling Limited's patent filing rate increasing or decreasing?

Chinook End-stage Recycling Limited'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 Chinook End-stage Recycling Limited's patents?

Chinook End-stage Recycling Limited's patents average 21.8 claims each. This indicates complex, broadly scoped patents that are harder for competitors to design around.

How is the Chinook End-stage Recycling Limited 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

Chinook's 6 grants land it in the top 57% 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 - Chinook ranks #39,556 of 50,000. Top 50 holders
Most of this portfolio concentrates in C10J - see who else leads that technology area. C10J 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.