Where does Guangzhou OO Medical Scientific Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Guangzhou OO Medical Scientific Limited ranks #31,845 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 Guangzhou OO Medical Scientific Limited hold?

Guangzhou OO Medical Scientific Limited holds 8 US utility patents granted between 2021 and 2025, spanning 3 technology areas.

What is Guangzhou OO Medical Scientific Limited's Innovation Score?

Guangzhou OO Medical Scientific Limited has an Innovation Score of 38.7 out of 100 (top 40% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Guangzhou OO Medical Scientific Limited focus on?

Guangzhou OO Medical Scientific Limited's top technology area is A61C (DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene) with 5 patents, ranking #181 of 546 assignees active in that subclass. Grants appear in 3 CPC subclasses total.

Is Guangzhou OO Medical Scientific Limited's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Guangzhou OO Medical Scientific Limited.

What does claim depth mean for Guangzhou OO Medical Scientific Limited's patents?

Guangzhou OO Medical Scientific Limited's patents average 8.3 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 Guangzhou OO Medical Scientific Limited 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

Guangzhou OO Medical Scientific Limited

USPTO PatentsView assignee record - 8 granted patents across 3 technology areas, recorded in grant years 2021–2025. 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: A61C (DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Guangzhou ranks #31,845 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 3 technology areas.

#31,845
of 49,997 US assignees by volume: Top 40%
by Innovation Score (38.7/100): 8.3
avg claims per patent

USPTO PatentsView assignee plate

Corpus R31845 · Foreign Corporation #31,845 · 8 grants

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

GRANTS-MICRO 8 grants
MID-PACK #31,845/49,997
PHOTO-FINISH Guangdong Wireking…
CPC-NARROW A61C · 3 areas
INNOV-THIN 38.7/100
CLAIMS-PAR 8.3 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Guangdong Wireking Housewares & Hardware 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 Guangzhou’s 38.7 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 7.6 pts (20%) Velocity 20.0 pts (52%) Breadth 6.1 pts (16%) Claim depth 5.0 pts (13%)

Qualcomm Incorporated · highest

85
Guangzhou OO… · this assignee

39
3D Lighting… · lowest

7

What this shows Guangzhou's Innovation Score is 38.7/100 (top 40% 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 Guangzhou?

Each dot is one of Guangzhou’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). Guangzhou’s own 8.3 claims/patent is ABOVE the 6.9 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Guangzhou's grants concentrate

Guangzhou OO Medical Scientific Limited is a focused PatentsView assignee: 3 CPC subclasses with 62.5% of grants classified under A61C (DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene). Peak complete grant year is 2023 (3 grants) versus a trough of 1 in 2021. By volume, Guangzhou sits between Guangdong Wireking Housewares & Hardware Co., Ltd and Gurtech (PTY) Ltd.

Guangzhou's three-year grant acceleration

Guangzhou OO Medical Scientific Limited shows 5 grants in 2022–2024 against only 1 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.

Guangdong Wirekin…

8
Guangzhou Argion…

8
Guangzhou Fastpri…

8
Guangzhou Meijia…

8
Guangzhou Tsunami…

8
Guardian Analytics

8
Gummarus

8
Gurtech (PTY)

8
Guangzhou OO Medi… ◀

8

What this shows Guangzhou holds 8 patents at rank #31,789, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Guangzhou

By rank, the assignees closest to #31,789 in granted patent volume.

Leaders in A61C (Dentistry)

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

Guangzhou's Innovation Score vs. every tracked assignee

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

39 Top 40% higher than 60% 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Guangzhou OO Medical Scientific Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	1	12.5%
2022	1	12.5%
2023	3	37.5%
2024	1	12.5%
2025partial year	2	25.0%

Which technologies does Guangzhou OO Medical Scientific Limited patent most?

A61C - DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene 5

A61B - DIAGNOSIS; SURGERY; Identification 1

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 1

Top 3 of 3 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

Guangzhou OO Medical Scientific Limited's patent record in context - here's where to go next.

Guangzhou OO Medical Scientific Limited's lead technology class is A61C (DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene), 62.5% of its portfolio - see every assignee active in that class. Explore A61C
Ranked #31,845 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Guangzhou OO Medical Scientific Limited against Guangdong Wireking Housewares & Hardware Co., Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.7/100 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.