Where does Chong Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chong Corporation ranks #28,412 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 Chong Corporation hold?

Chong Corporation holds 9 US utility patents granted between 2015 and 2020, spanning 6 technology areas.

What is Chong Corporation's Innovation Score?

Chong Corporation has an Innovation Score of 31.6 out of 100 (38th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Chong Corporation focus on?

Chong Corporation's top technology area is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes) with 4 patents, ranking #4,709 of 7,163 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is Chong Corporation's patent grant rate increasing or decreasing?

Chong Corporation's recent grant velocity is -87% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Chong Corporation's patents?

Chong Corporation's patents average 29.8 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 Chong Corporation 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 US Corporation

Chong Corporation

USPTO PatentsView assignee record - 9 granted patents across 6 technology areas, recorded in grant years 2015–2020. 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: A61K (Preparations FOR Medical, Dental OR Toiletry Purposes).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Chong ranks #28,412 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 6 technology areas.

#28,412
of 49,997 US assignees by volume: 38th percentile
by Innovation Score (31.6/100): 29.8
avg claims per patent: -87%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R28412 · US Corporation #28,412 · 9 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-DENSE · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 9 grants
MID-PACK #28,412/49,997
PHOTO-FINISH China National…
CPC-NARROW A61K · 6 areas
INNOV-THIN 31.6/100
CLAIMS-DENSE 29.8 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -87% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: China National Research Institute OF Food & Fermentation Industries 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 Chong’s 31.6 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 (25%) Velocity 0.0 pts (0%) Breadth 8.7 pts (27%) Claim depth 15.0 pts (47%)

Qualcomm Incorporated · highest

85
Chong · this assignee

32
3D Lighting… · lowest

7

What this shows Chong's Innovation Score is 31.6/100 (38th percentile 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 Chong?

Each dot is one of Chong’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). Chong’s own 29.8 claims/patent is ABOVE the 9.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Chong's grants concentrate

Chong Corporation is a focused PatentsView assignee: 6 CPC subclasses with 44.4% of grants classified under A61K (Preparations FOR Medical, Dental OR Toiletry Purposes). Peak complete grant year is 2016 (3 grants) versus a trough of 1 in 2015. By volume, Chong sits between China National Research Institute OF Food & Fermentation Industries Co., Ltd. and Ciar S.P.A..

China National Re…

9
Chinese PLA Gener…

9
Chinoin GYÓGyszer…

9
Chipolo D O O

9
Chongqing Advance…

9
Chongqing Haier R…

9
CHZ

9
Ciar S P A

9
Chong ◀

9

What this shows Chong holds 9 patents at rank #28,367, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chong

By rank, the assignees closest to #28,367 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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

Chong's Innovation Score vs. every tracked assignee

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

32 38th percentile higher than 38% 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 · 2015–2020

Grants by year

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

View data table

Chong Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	11.1%
2016	3	33.3%
2017	2	22.2%
2018	2	22.2%
2020	1	11.1%

Which technologies does Chong Corporation patent most?

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 4

A61M - Devices FOR Introducing Media Into, OR Onto, THE Body ; Devices FOR Transducing Body Media OR FOR Taking Media From THE Body ; Devices FOR Producing OR Ending Sleep OR Stupor 3

F22B - Methods OF Steam GENERATION; Steam Boilers 3

A24F - Smokers' REQUISITES; Match BOXES; Simulated Smoking Devices 3

A24B - Manufacture OR Preparation OF Tobacco FOR Smoking OR CHEWING; TOBACCO; Snuff 1

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 1

Top 6 of 6 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

Chong Corporation's patent record in context - here's where to go next.

Chong Corporation's lead technology class is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes), 44.4% of its portfolio - see every assignee active in that class. Explore A61K
Ranked #28,412 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chong Corporation against China National Research Institute OF Food & Fermentation Industries Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 31.6/100 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.