Where does Hefei General Machinery Research Institute Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hefei General Machinery Research Institute Co., Ltd. ranks #35,669 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 Hefei General Machinery Research Institute Co., Ltd. hold?

Hefei General Machinery Research Institute Co., Ltd. holds 7 US utility patents granted between 2017 and 2025, spanning 9 technology areas.

What is Hefei General Machinery Research Institute Co., Ltd.'s Innovation Score?

Hefei General Machinery Research Institute Co., Ltd. has an Innovation Score of 44.5 out of 100 (top 25% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Hefei General Machinery Research Institute Co., Ltd.'s patent grant rate increasing or decreasing?

Hefei General Machinery Research Institute Co., Ltd.'s recent grant velocity is +200% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Hefei General Machinery Research Institute Co., Ltd.'s patents?

Hefei General Machinery Research Institute Co., Ltd.'s patents average 11.1 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

Hefei General Machinery Research Institute Co., Ltd.

Q: What technology areas does Hefei General Machinery Research Institute Co., Ltd. focus on?

Hefei General Machinery Research Institute Co., Ltd.'s top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 3 patents, ranking #3,796 of 7,863 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

Q: How is the Hefei General Machinery Research Institute Co., 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 PatentsView assignee record - 7 granted patents across 9 technology areas, recorded in grant years 2017–2025. 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

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Hefei ranks #35,669 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 9 technology areas.

#35,669
of 49,997 US assignees by volume: Top 25%
by Innovation Score (44.5/100): 11.1
avg claims per patent: +200%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R35669 · Foreign Corporation #35,669 · 7 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 7 grants
MID-PACK #35,669/49,997
PHOTO-FINISH Hayashi Kogyosyo
CPC-NARROW G01N · 9 areas
INNOV-PAR 44.5/100
CLAIMS-PAR 11.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +200% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Hayashi Kogyosyo Co., 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 Hefei’s 44.5 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 7.2 pts (16%) Velocity 20.0 pts (45%) Breadth 10.6 pts (24%) Claim depth 6.7 pts (15%)

Qualcomm Incorporated · highest

85
Hefei General… · this assignee

44
3D Lighting… · lowest

7

What this shows Hefei's Innovation Score is 44.5/100 (top 25% 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 Hefei?

Each dot is one of Hefei’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). Hefei’s own 11.1 claims/patent is at or below the 11.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Hefei's grants concentrate

Hefei General Machinery Research Institute Co., Ltd. is a focused PatentsView assignee: 9 CPC subclasses with 42.9% of grants classified under G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties). Peak complete grant year is 2024 (3 grants) versus a trough of 1 in 2017. By volume, Hefei sits between Hayashi Kogyosyo Co., Ltd. and Hella Autotechnik Nova S.R.O..

Hefei's three-year grant acceleration

Hefei General Machinery Research Institute Co., Ltd. shows 3 grants in 2022–2024 against only 0 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.

Hayashi Kogyosyo

7
HBL

7
HCC

7
Hedeen Internatio…

7
Hefei JEE Power S…

7
Heliovis

7
Helix

7
Hella Autotechnik…

7
Hefei General Mac… ◀

7

What this shows Hefei holds 7 patents at rank #35,625, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hefei

By rank, the assignees closest to #35,625 in granted patent volume.

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

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

Hefei's Innovation Score vs. every tracked assignee

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

44 Top 25% higher than 75% 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 · 2017–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Hefei General Machinery Research Institute Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	14.3%
2024	3	42.9%
2025partial year	3	42.9%

Which technologies does Hefei General Machinery Research Institute Co., Ltd. patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 3

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 1

F17C - Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases 1

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 1

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

F26B - Drying Solid Materials OR Objects BY Removing Liquid Therefrom 1

B61B - Railway SYSTEMS; Equipment Therefor NOT Otherwise Provided FOR 1

B61D - Body Details OR Kinds OF Railway Vehicles 1

G06T - Image Data Processing OR Generation, IN General 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

Hefei General Machinery Research Institute Co., Ltd.'s patent record in context - here's where to go next.

Hefei General Machinery Research Institute Co., Ltd.'s lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 42.9% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #35,669 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hefei General Machinery Research Institute Co., Ltd. against Hayashi Kogyosyo Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.5/100 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.