Where does China Special Equipment Inspection & Research Institute rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), China Special Equipment Inspection & Research Institute ranks #28,408 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Is China Special Equipment Inspection & Research Institute's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for China Special Equipment Inspection & Research Institute.

What does claim depth mean for China Special Equipment Inspection & Research Institute's patents?

China Special Equipment Inspection & Research Institute's patents average 11.2 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

China Special Equipment Inspection & Research Institute

Q: How many patents does China Special Equipment Inspection & Research Institute hold?

China Special Equipment Inspection & Research Institute holds 9 US utility patents granted between 2020 and 2025, spanning 14 technology areas.

Q: What is China Special Equipment Inspection & Research Institute's Innovation Score?

China Special Equipment Inspection & Research Institute has an Innovation Score of 37.9 out of 100 (top 42% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Q: What technology areas does China Special Equipment Inspection & Research Institute focus on?

China Special Equipment Inspection & Research Institute's top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 7 patents, ranking #2,018 of 7,863 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

Q: How is the China Special Equipment Inspection & Research Institute 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 PatentsView assignee record - 9 granted patents across 14 technology areas, recorded in grant years 2020–2025. 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: G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, China ranks #28,408 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 14 technology areas.

#28,408
of 49,997 US assignees by volume: Top 42%
by Innovation Score (37.9/100): 11.2
avg claims per patent

USPTO PatentsView assignee plate

Corpus R28408 · Foreign Corporation #28,408 · 9 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 9 grants
MID-PACK #28,408/49,997
PHOTO-FINISH Chef Robotics
CPC-FOCUS G01N · 14 areas
INNOV-THIN 37.9/100
CLAIMS-PAR 11.2 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2020–2025 · 6y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Chef Robotics, 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 China’s 37.9 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 8.0 pts (21%) Velocity 10.0 pts (26%) Breadth 13.2 pts (35%) Claim depth 6.7 pts (18%)

Qualcomm Incorporated · highest

85
China Special… · this assignee

38
3D Lighting… · lowest

7

What this shows China's Innovation Score is 37.9/100 (top 42% 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 China?

Each dot is one of China’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). China’s own 11.2 claims/patent is ABOVE the 11.1 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where China's grants concentrate

China Special Equipment Inspection & Research Institute is a focused PatentsView assignee: 14 CPC subclasses with 77.8% of grants classified under G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties). Peak complete grant year is 2023 (2 grants) versus a trough of 1 in 2020. By volume, China sits between Chef Robotics, Inc. and Christie Lites Enterprises Canada Inc..

China's three-year grant acceleration

China Special Equipment Inspection & Research Institute shows 3 grants in 2022–2024 against only 2 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.

Chef Robotics

9
Chef Software

9
Chien Yu Hong

9
China Institute o…

9
Chongqing HKC Opt…

9
Chongqing Maiyi T…

9
Choprix

9
Christie Lites En…

9
China Special Equ… ◀

9

What this shows China holds 9 patents at rank #28,459, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near China

By rank, the assignees closest to #28,459 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

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

China's Innovation Score vs. every tracked assignee

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

38 Top 42% higher than 58% 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 · 2020–2025

Grants by year

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

View data table

China Special Equipment Inspection & Research Institute patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	1	11.1%
2021	1	11.1%
2022	1	11.1%
2023	2	22.2%
2025partial year	4	44.4%

Which technologies does China Special Equipment Inspection & Research Institute patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 7

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 2

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 2

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 1

G10K - Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR 1

G08C - Transmission Systems FOR Measured Values, Control OR Similar Signals 1

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 1

H04W - Wireless Communication Networks 1

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 1

B05D - Processes FOR Applying Fluent Materials TO Surfaces, IN General 1

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 1

C22C - Alloys 1

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 1

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 1

Top 14 of 14 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

China Special Equipment Inspection & Research Institute's patent record in context - here's where to go next.

China Special Equipment Inspection & Research Institute's lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 77.8% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #28,408 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare China Special Equipment Inspection & Research Institute against Chef Robotics, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 37.9/100 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.