Where does Changsha Sinocare Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Changsha Sinocare Inc. ranks #28,384 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 Changsha Sinocare Inc. hold?

Changsha Sinocare Inc. holds 9 US utility patents granted between 2016 and 2021, spanning 5 technology areas.

What is Changsha Sinocare Inc.'s Innovation Score?

Changsha Sinocare Inc. has an Innovation Score of 26.6 out of 100 (21st 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 Changsha Sinocare Inc. focus on?

Changsha Sinocare Inc.'s top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 9 patents, ranking #1,627 of 7,863 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

Is Changsha Sinocare Inc.'s patent grant rate increasing or decreasing?

Changsha Sinocare Inc.'s recent grant velocity is -50% 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 Changsha Sinocare Inc.'s patents?

Changsha Sinocare Inc.'s patents average 17.9 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 Changsha Sinocare Inc. 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

Changsha Sinocare Inc.

USPTO PatentsView assignee record - 9 granted patents across 5 technology areas, recorded in grant years 2016–2021. 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, Changsha ranks #28,384 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 5 technology areas.

#28,384
of 49,997 US assignees by volume: 21st percentile
by Innovation Score (26.6/100): 17.9
avg claims per patent: -50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R28384 · Foreign Corporation #28,384 · 9 grants

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

GRANTS-MICRO 9 grants
MID-PACK #28,384/49,997
PHOTO-FINISH Center Vue S p A
CPC-NARROW G01N · 5 areas
INNOV-THIN 26.6/100
CLAIMS-RICH 17.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Center Vue S.p.A. (±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 Changsha’s 26.6 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 (30%) Velocity 0.0 pts (0%) Breadth 7.9 pts (30%) Claim depth 10.7 pts (40%)

Qualcomm Incorporated · highest

85
Changsha Sinocare · this assignee

27
3D Lighting… · lowest

7

What this shows Changsha's Innovation Score is 26.6/100 (21st 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 Changsha?

Each dot is one of Changsha’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). Changsha’s own 17.9 claims/patent is ABOVE the 13.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Changsha's grants concentrate

Changsha Sinocare Inc. is a focused PatentsView assignee: 5 CPC subclasses with 100% of grants classified under G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties). Peak complete grant year is 2018 (3 grants) versus a trough of 1 in 2019. By volume, Changsha sits between Center Vue S.p.A. and Check Video LLC.

Center Vue S p A

9
Central Adelaide…

9
Centro de Investi…

9
Certona

9
Chapman University

9
Charge Fusion

9
Charles & Colvard

9
Check Video

9
Changsha Sinocare ◀

9

What this shows Changsha holds 9 patents at rank #28,449, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Changsha

By rank, the assignees closest to #28,449 in granted patent volume.

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

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

Changsha's Innovation Score vs. every tracked assignee

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

27 21st percentile higher than 21% 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 · 2016–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Changsha Sinocare Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	22.2%
2018	3	33.3%
2019	1	11.1%
2020	2	22.2%
2021	1	11.1%

Which technologies does Changsha Sinocare Inc. patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 9

C12Q - Measuring OR Testing Processes Involving Enzymes, Nucleic Acids OR Microorganisms ; Compositions OR Test Papers THEREFOR; Processes OF Preparing Such COMPOSITIONS; Condition-responsive Control IN Microbiological OR Enzymological Processes 4

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 3

Y10T - Technical Subjects Covered BY Former US Classification 3

A61B - DIAGNOSIS; SURGERY; Identification 1

Top 5 of 5 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

Changsha Sinocare Inc.'s patent record in context - here's where to go next.

Changsha Sinocare Inc.'s lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 100% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #28,384 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Changsha Sinocare Inc. against Center Vue S.p.A., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.6/100 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.