Overall rank by patents
#9,001
of 50,000 tracked assignees
USPTO PatentsView assignee record - 35 granted patents across 28 technology areas, recorded in grant years 2019–2025. 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: Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION).
The verdict
According to USPTO PatentsView, China ranks #9,001 of 50,000 tracked US assignees by granted-patent volume, with 35 patents across 28 technology areas.
USPTO PatentsView assignee plate
Corpus R9001 · Foreign Corporation #9,001 · 35 grants
GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL
Nearest grant-volume peer: Carlsmed, 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.
Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.
Qualcomm Incorporated · highest
85 score
Progress Rail Services · near
61 score
China Energy Investm… · this assignee
61 score
Ghost Autonomy · near
61 score
Leica Geosystems · near
61 score
Zimmer · near
61 score
3D Lighting Innovati… · lowest
7 score
What this shows China Energy Investment Corporation Limited stamps GRANTS-SMALL, UPPER-Q, PHOTO-FINISH, CPC-FOCUS, INNOV-STRONG, CLAIMS-RICH, TYPE-FRNCORP, VEL-SURGE, BOOK-FULL. Volume places it #9,001 of 50,000; Innovation Score 61.2/100 sits in the top 3% of the PatentsView-derived corpus. Closest grant-volume peer on this plate is Carlsmed, Inc. (±0 grants).
China Energy Investment Corporation Limited has been granted 35 US utility patents between 2019 and 2025, placing China Energy Investment Corporation Limited at #9,001 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 28 distinct Cooperative Patent Classification (CPC) subclasses, averaging 16.8 claims per patent with primary concentration in Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION). As a Foreign Corporation, China Energy Investment Corporation Limited is one of the more focused assignees in the PatentsView dataset. By volume, China sits between CODE Systems Corporation (35 patents, rank #9,002) and Colortokens Inc. (35 patents, rank #9,010) - the closest US assignees by grant volume. The composite Innovation Score of 61.2/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 32 grants, compared with 1 in the 2015–2019 window, a +3100% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.
Claim depth and technology breadth describe this aggregate record. China Energy Investment Corporation Limited's 16.8 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 28 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
CODE SYSTEMS CORPORATION
35 patents
CORVIA MEDICAL, INC.
35 patents
Carlsmed, Inc.
35 patents
Children's Hospital Los Angeles
35 patents
Cista System Corp.
35 patents
Clarkwestern Dietrich Building Systems LLC
35 patents
Click Therapeutics, Inc.
35 patents
ColorTokens Inc.
35 patents
China Energy Investment Corporation Limited
35 patents
What this shows China holds 35 patents at rank #9,006, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #9,006 in granted patent volume.
Other assignees with the most granted patents in China's primary technology class.
Two PlainPatent-derived peer sets for China, neither rank-band nor same-CPC leaders (those blocks stay above).
Nearest assignees by Innovation Score (61 here).
China's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
61 Top 3% higher than 97% 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
Teal-shaded recent years (2020–present) versus the 2019–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2019 | 1 | 2.9% |
| 2020 | 1 | 2.9% |
| 2021 | 4 | 11.4% |
| 2022 | 7 | 20.0% |
| 2023 | 9 | 25.7% |
| 2024 | 11 | 31.4% |
| 2025partial year | 2 | 5.7% |
Top 15 of 28 technology areas
Overall rank by patents
#9,001
of 50,000 tracked assignees
61.2 out of 100
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.