Where does Carbon Engineering Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Carbon Engineering Ltd. ranks #20,888 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 Carbon Engineering Ltd. hold?

Carbon Engineering Ltd. holds 13 US utility patents granted between 2015 and 2023, spanning 19 technology areas.

What is Carbon Engineering Ltd.'s Innovation Score?

Carbon Engineering Ltd. has an Innovation Score of 45.3 out of 100 (top 23% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Carbon Engineering Ltd. focus on?

Carbon Engineering Ltd.'s top technology area is B01D (Separation) with 11 patents, ranking #423 of 3,536 assignees active in that subclass. Grants appear in 19 CPC subclasses total.

Is Carbon Engineering Ltd.'s patent grant rate increasing or decreasing?

Carbon Engineering Ltd.'s recent grant velocity is +17% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Carbon Engineering Ltd.'s patents?

Carbon Engineering Ltd.'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 Carbon Engineering Ltd. 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 Foreign Corporation

Carbon Engineering Ltd.

USPTO PatentsView assignee record - 13 granted patents across 19 technology areas, recorded in grant years 2015–2023. 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: B01D (Separation).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Carbon ranks #20,888 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 19 technology areas.

#20,888
of 49,997 US assignees by volume: Top 23%
by Innovation Score (45.3/100): 23.5
avg claims per patent: +17%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R20888 · Foreign Corporation #20,888 · 13 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-DENSE · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MICRO 13 grants
MID-PACK #20,888/49,997
PHOTO-FINISH California Eastern…
CPC-FOCUS B01D · 19 areas
INNOV-PAR 45.3/100
CLAIMS-DENSE 23.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +17% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: California Eastern Laboratories, 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 Carbon’s 45.3 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 9.1 pts (20%) Velocity 6.7 pts (15%) Breadth 15.4 pts (34%) Claim depth 14.1 pts (31%)

Qualcomm Incorporated · highest

85
Carbon Engineering · this assignee

45
3D Lighting… · lowest

7

What this shows Carbon's Innovation Score is 45.3/100 (top 23% 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 Carbon?

Each dot is one of Carbon’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). Carbon’s own 23.5 claims/patent is ABOVE the 19.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Carbon's grants concentrate

Carbon Engineering Ltd. is a focused PatentsView assignee: 19 CPC subclasses with 84.6% of grants classified under B01D (Separation). Peak complete grant year is 2023 (4 grants) versus a trough of 1 in 2015. By volume, Carbon sits between CW Holdings Ltd and Catbird Networks, Inc..

Carbon's three-year grant acceleration

Carbon Engineering Ltd. shows 5 grants in 2022–2024 against only 5 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.

CW Holdings

13
Cytori Therapeuti…

13
California Easter…

13
Canburg

13
Careband

13
Caris MPI

13
Caris Science

13
Catbird Networks

13
Carbon Engineering ◀

13

What this shows Carbon holds 13 patents at rank #20,931, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Carbon

By rank, the assignees closest to #20,931 in granted patent volume.

Leaders in B01D (Separation)

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

Carbon's Innovation Score vs. every tracked assignee

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

45 Top 23% higher than 77% 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 · 2015–2023

Grants by year

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

View data table

Carbon Engineering Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	7.7%
2017	1	7.7%
2018	1	7.7%
2019	3	23.1%
2021	2	15.4%
2022	1	7.7%
2023	4	30.8%

Which technologies does Carbon Engineering Ltd. patent most?

B01D - Separation 11

Y02C - Capture, Storage, Sequestration OR Disposal OF Greenhouse Gases [GHG] 10

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 7

C01F - Compounds OF THE Metals Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium, OR OF THE Rare-earth Metals 6

D21C - Production OF Cellulose BY Removing Non-cellulose Substances From Cellulose-containing MATERIALS; Regeneration OF Pulping LIQUORS; Apparatus Therefor 6

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 4

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 4

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 3

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 3

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 2

F28C - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media Come Into Direct Contact Without Chemical Interaction 2

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 2

Y02A - Technologies FOR Adaptation TO Climate Change 2

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

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 1

Top 15 of 19 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

Carbon Engineering Ltd.'s patent record in context - here's where to go next.

Carbon Engineering Ltd.'s lead technology class is B01D (Separation), 84.6% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #20,888 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Carbon Engineering Ltd. against CW Holdings Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.3/100 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.