Where does Tang Chou Industrial Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tang Chou Industrial Co., Ltd. ranks #33,532 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 Tang Chou Industrial Co., Ltd. hold?

Tang Chou Industrial Co., Ltd. holds 8 US utility patents granted between 2020 and 2024, spanning 5 technology areas.

What is Tang Chou Industrial Co., Ltd.'s Innovation Score?

Tang Chou Industrial Co., Ltd. has an Innovation Score of 42.3 out of 100 (top 31% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Tang Chou Industrial Co., Ltd. focus on?

Tang Chou Industrial Co., Ltd.'s top technology area is B25G (Handles FOR Hand Implements) with 6 patents, ranking #18 of 231 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

Is Tang Chou Industrial Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Tang Chou Industrial Co., Ltd..

What does claim depth mean for Tang Chou Industrial Co., Ltd.'s patents?

Tang Chou Industrial Co., Ltd.'s patents average 11.3 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 Tang Chou Industrial 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 2015–2025 USPTO PatentsView Foreign Corporation

Tang Chou Industrial Co., Ltd.

USPTO PatentsView assignee record - 8 granted patents across 5 technology areas, recorded in grant years 2020–2024. 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: B25G (Handles FOR Hand Implements).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Tang ranks #33,532 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 5 technology areas.

#33,532
of 49,997 US assignees by volume: Top 31%
by Innovation Score (42.3/100): 11.3
avg claims per patent

USPTO PatentsView assignee plate

Corpus R33532 · Foreign Corporation #33,532 · 8 grants

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

GRANTS-MICRO 8 grants
MID-PACK #33,532/49,997
PHOTO-FINISH Taiwan Chelic
CPC-NARROW B25G · 5 areas
INNOV-PAR 42.3/100
CLAIMS-PAR 11.3 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2020–2024 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Taiwan Chelic 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 Tang’s 42.3 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 (18%) Velocity 20.0 pts (47%) Breadth 7.9 pts (19%) Claim depth 6.8 pts (16%)

Qualcomm Incorporated · highest

85
Tang Chou Industrial · this assignee

42
3D Lighting… · lowest

7

What this shows Tang's Innovation Score is 42.3/100 (top 31% 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 Tang?

Each dot is one of Tang’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). Tang’s own 11.3 claims/patent is ABOVE the 9.1 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Tang's grants concentrate

Tang Chou Industrial Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 75% of grants classified under B25G (Handles FOR Hand Implements). Peak complete grant year is 2023 (3 grants) versus a trough of 1 in 2020. By volume, Tang sits between Taiwan Chelic Co., Ltd. and TAV Holdings, Inc..

Tang's three-year grant acceleration

Tang Chou Industrial Co., Ltd. shows 7 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.

Taiwan Chelic

8
Taiwan Shan YIN I…

8
Tamagawa Seiki

8
Tanazawa Hakkosha

8
Tapematic S P A

8
Target Systemelek…

8
Tarveda Therapeut…

8
TAV Holdings

8
Tang Chou Industr… ◀

8

What this shows Tang holds 8 patents at rank #33,509, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tang

By rank, the assignees closest to #33,509 in granted patent volume.

Leaders in B25G (Handles FOR Hand Implements)

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

Tang's Innovation Score vs. every tracked assignee

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

42 Top 31% higher than 69% 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 · 2020–2024

Grants by year

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

View data table

Tang Chou Industrial Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	1	12.5%
2022	2	25.0%
2023	3	37.5%
2024	2	25.0%

Which technologies does Tang Chou Industrial Co., Ltd. patent most?

B25G - Handles FOR Hand Implements 6

B66F - Hoisting, Lifting, Hauling OR Pushing, NOT Otherwise Provided FOR, e.g. Devices Which Apply A Lifting OR Pushing Force Directly TO THE Surface OF A Load 3

B25D - Percussive Tools 3

B25C - Hand-held Nailing OR Stapling TOOLS; Manually Operated Portable Stapling Tools 2

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 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

Tang Chou Industrial Co., Ltd.'s patent record in context - here's where to go next.

Tang Chou Industrial Co., Ltd.'s lead technology class is B25G (Handles FOR Hand Implements), 75% of its portfolio - see every assignee active in that class. Explore B25G
Ranked #33,532 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tang Chou Industrial Co., Ltd. against Taiwan Chelic Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.3/100 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.