Where does Cmech (GUANGZHOU) Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Cmech (GUANGZHOU) Ltd. ranks #10,580 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 Cmech (GUANGZHOU) Ltd. hold?

Cmech (GUANGZHOU) Ltd. holds 29 US utility patents granted between 2015 and 2025, spanning 9 technology areas.

What is Cmech (GUANGZHOU) Ltd.'s Innovation Score?

Cmech (GUANGZHOU) Ltd. has an Innovation Score of 35.7 out of 100 (top 49% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Cmech (GUANGZHOU) Ltd.'s patent grant rate increasing or decreasing?

Cmech (GUANGZHOU) Ltd.'s recent grant velocity is +111% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Cmech (GUANGZHOU) Ltd.'s patents?

Cmech (GUANGZHOU) Ltd.'s patents average 16.2 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 Cmech (GUANGZHOU) 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

Cmech (GUANGZHOU) Ltd.

Q: What technology areas does Cmech (GUANGZHOU) Ltd. focus on?

Cmech (GUANGZHOU) Ltd.'s top technology area is E05Y (Indexing Scheme Associated With Subclasses E05d AND E05f, Relating TO Construction Elements, Electric Control, Power Supply, Power Signal OR Transmission, User Interfaces, Mounting OR Coupling, Details, Accessories, Auxiliary Operations NOT Otherwise Provided FOR, Application Thereof) with 21 patents, ranking #42 of 729 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

USPTO PatentsView assignee record - 29 granted patents across 9 technology areas, recorded in grant years 2015–2025. 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: E05Y (Indexing Scheme Associated With Subclasses E05d AND E05f, Relating TO Construction Elements, Electric Control, Power Supply, Power Signal OR Transmission, User Interfaces, Mounting OR Coupling, Detail).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Cmech ranks #10,580 of 49,997 tracked US assignees by granted-patent volume, with 29 patents across 9 technology areas.

#10,580
of 49,997 US assignees by volume: Top 49%
by Innovation Score (35.7/100): 16.2
avg claims per patent: +111%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R10580 · Foreign Corporation #10,580 · 29 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 29 grants
UPPER-Q #10,580/49,997
PHOTO-FINISH Carma Technology
CPC-NARROW E05Y · 9 areas
INNOV-THIN 35.7/100
CLAIMS-RICH 16.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +111% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Carma Technology Ltd. (±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 Cmech’s 35.7 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 11.7 pts (33%) Velocity 3.6 pts (10%) Breadth 10.6 pts (30%) Claim depth 9.7 pts (27%)

Qualcomm Incorporated · highest

85
Biomet C V · near

36
Cardinal Health… · near

36
Cmech (GUANGZHOU) · this assignee

36
Isowa · near

36
Shanghai OXi… · near

36
3D Lighting… · lowest

7

What this shows Cmech's Innovation Score is 35.7/100 (top 49% 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 Cmech?

Each dot is one of Cmech’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). Cmech’s own 16.2 claims/patent is ABOVE the 13.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Cmech's grants concentrate

Cmech (GUANGZHOU) Ltd. is a focused PatentsView assignee: 9 CPC subclasses with 72.4% of grants classified under E05Y (Indexing Scheme Associated With Subclasses E05d AND E05f, Relating TO Construction Elements, Electric Control, Power Supply, Power Signal OR Transmission, User Interfaces, Mounting OR Coupling, Detail). Peak complete grant year is 2021 (7 grants) versus a trough of 1 in 2019. By volume, Cmech sits between Centre Leon Berard and Carma Technology Ltd..

Cmech's three-year grant acceleration

Cmech (GUANGZHOU) Ltd. shows 7 grants in 2022–2024 against only 13 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.

Centre Leon Berard

29
China Communicati…

29
Cloud Network Tec…

29
CMC Materials

29
Cordis

29
CP Delaware

29
CSR Technology Ho…

29
Carma Technology

29
Cmech (Guangzhou) ◀

29

What this shows Cmech holds 29 patents at rank #10,577, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Cmech

By rank, the assignees closest to #10,577 in granted patent volume.

Leaders in E05Y (Indexing Scheme Associated With Subclasses E05d AND E05f)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Cmech, neither rank-band nor same-CPC leaders (those blocks stay above). In E05Y (Indexing Scheme Associated With Subclasses E05d AND E05f), Cmech ranks #42 of 729 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (36 here).

Shanghai OXi Technology Co., Ltd 36 Kabushiki Kaisha Isowa 36 Cardinal Health Switzerland 515 GMBH 36 Biomet C.V. 36

Cmech's Innovation Score vs. every tracked assignee

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

36 Top 49% higher than 51% 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 · 2015–2025

Grants by year

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

View data table

Cmech (GUANGZHOU) Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	6.9%
2017	3	10.3%
2018	3	10.3%
2019	1	3.4%
2020	5	17.2%
2021	7	24.1%
2022	2	6.9%
2023	2	6.9%
2024	3	10.3%
2025partial year	1	3.4%

Which technologies does Cmech (GUANGZHOU) Ltd. patent most?

E05Y - Indexing Scheme Associated With Subclasses E05d AND E05f, Relating TO Construction Elements, Electric Control, Power Supply, Power Signal OR Transmission, User Interfaces, Mounting OR Coupling, Details, Accessories, Auxiliary Operations NOT Otherwise Provided FOR, Application Thereof 21

E05F - Devices FOR Moving Wings Into Open OR Closed POSITION; Checks FOR WINGS; Wing Fittings NOT Otherwise Provided FOR, Concerned With THE Functioning OF THE Wing 15

E05C - Bolts OR Fastening Devices FOR Wings, Specially FOR Doors OR Windows 10

E05B - LOCKS; Accessories THEREFOR; Handcuffs 10

A47B - TABLES; DESKS; Office FURNITURE; CABINETS; DRAWERS; General Details OF Furniture 7

B66D - CAPSTANS; WINCHES; Tackles, e.g. Pulley BLOCKS; Hoists 4

F16H - Gearing 4

E06B - Fixed OR Movable Closures FOR Openings IN Buildings, Vehicles, Fences OR Like Enclosures IN General, e.g. Doors, Windows, Blinds, Gates 4

E05D - Hinges OR Suspension Devices FOR Doors, Windows OR Wings 1

Top 9 of 9 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

Cmech (GUANGZHOU) Ltd.'s patent record in context - here's where to go next.

Cmech (GUANGZHOU) Ltd.'s lead technology class is E05Y (Indexing Scheme Associated With Subclasses E05d AND E05f, Relating TO Construction Elements, Electric Control, Power Supply, Power Signal OR Transmission, User Interfaces, Mounting OR Coupling, Detail), 72.4% of its portfolio - see every assignee active in that class. Explore E05Y
Ranked #10,580 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Cmech (GUANGZHOU) Ltd. against Centre Leon Berard, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 35.7/100 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.