Where does Watanabe Oyster Laboratory Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Watanabe Oyster Laboratory Co., Ltd. ranks #38,278 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 Watanabe Oyster Laboratory Co., Ltd. hold?

Watanabe Oyster Laboratory Co., Ltd. holds 7 US utility patents granted between 2015 and 2025, spanning 12 technology areas.

What is Watanabe Oyster Laboratory Co., Ltd.'s Innovation Score?

Watanabe Oyster Laboratory Co., Ltd. has an Innovation Score of 31.2 out of 100 (37th 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 Watanabe Oyster Laboratory Co., Ltd. focus on?

Watanabe Oyster Laboratory Co., Ltd.'s top technology area is C07C (Acyclic OR Carbocyclic Compounds) with 5 patents, ranking #845 of 2,691 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

Is Watanabe Oyster Laboratory Co., Ltd.'s patent grant rate increasing or decreasing?

Watanabe Oyster Laboratory Co., Ltd.'s recent grant velocity is -75% 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 Watanabe Oyster Laboratory Co., Ltd.'s patents?

Watanabe Oyster Laboratory Co., Ltd.'s patents average 8.6 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 Watanabe Oyster Laboratory 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

Watanabe Oyster Laboratory Co., Ltd.

USPTO PatentsView assignee record - 7 granted patents across 12 technology areas, recorded in grant years 2015–2025. 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: C07C (Acyclic OR Carbocyclic Compounds).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Watanabe ranks #38,278 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 12 technology areas.

#38,278
of 49,997 US assignees by volume: 37th percentile
by Innovation Score (31.2/100): 8.6
avg claims per patent: -75%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R38278 · Foreign Corporation #38,278 · 7 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 7 grants
LOWER-Q #38,278/49,997
PHOTO-FINISH Wagman Metal Products
CPC-FOCUS C07C · 12 areas
INNOV-THIN 31.2/100
CLAIMS-PAR 8.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -75% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Wagman Metal Products, Inc. (±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 Watanabe’s 31.2 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 (23%) Velocity 6.7 pts (21%) Breadth 12.2 pts (39%) Claim depth 5.1 pts (16%)

Qualcomm Incorporated · highest

85
Watanabe Oyster… · this assignee

31
3D Lighting… · lowest

7

What this shows Watanabe's Innovation Score is 31.2/100 (37th 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 Watanabe?

Each dot is one of Watanabe’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). Watanabe’s own 8.6 claims/patent is at or below the 17.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Watanabe's grants concentrate

Watanabe Oyster Laboratory Co., Ltd. is a focused PatentsView assignee: 12 CPC subclasses with 71.4% of grants classified under C07C (Acyclic OR Carbocyclic Compounds). Peak complete grant year is 2017 (2 grants) versus a trough of 1 in 2015. By volume, Watanabe sits between W.R. Wagner Family Limited Partnership and Wayport, Inc..

Watanabe's three-year grant acceleration

Watanabe Oyster Laboratory Co., Ltd. shows 1 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.

W R Wagner Family…

7
Wagman Metal Prod…

7
Warnermedia Direct

7
Warr Gaming

7
Wave Life Science…

7
Waveform

7
Waveguide

7
Wayport

7
Watanabe Oyster L… ◀

7

What this shows Watanabe holds 7 patents at rank #38,243, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Watanabe

By rank, the assignees closest to #38,243 in granted patent volume.

Leaders in C07C (Acyclic OR Carbocyclic Compounds)

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

Watanabe's Innovation Score vs. every tracked assignee

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

31 37th percentile higher than 37% 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 · 2015–2025

Grants by year

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

View data table

Watanabe Oyster Laboratory Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	14.3%
2017	2	28.6%
2018	1	14.3%
2022	1	14.3%
2025partial year	2	28.6%

Which technologies does Watanabe Oyster Laboratory Co., Ltd. patent most?

C07C - Acyclic OR Carbocyclic Compounds 5

A23L - Foods, Foodstuffs OR Non-alcoholic Beverages, NOT Otherwise Provided FOR; Preparation OR Treatment Thereof 4

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 3

C12P - Fermentation OR Enzyme-using Processes TO Synthesise A Desired Chemical Compound OR Composition OR TO Separate Optical Isomers From A Racemic Mixture 2

C12R - Indexing Scheme Associated With Subclasses C12c - C12q, Relating TO Microorganisms 2

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 2

A23V - Indexing Scheme Relating TO Foods, Foodstuffs OR Non-alcoholic Beverages AND Lactic OR Propionic Acid Bacteria Used IN Foodstuffs OR Food Preparation 2

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 2

A23B - Preservation OF Foods, Foodstuffs OR Non-alcoholic BEVERAGES; Chemical Ripening OF Fruit OR Vegetables 1

Y02A - Technologies FOR Adaptation TO Climate Change 1

B01D - Separation 1

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 1

Top 12 of 12 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

Watanabe Oyster Laboratory Co., Ltd.'s patent record in context - here's where to go next.

Watanabe Oyster Laboratory Co., Ltd.'s lead technology class is C07C (Acyclic OR Carbocyclic Compounds), 71.4% of its portfolio - see every assignee active in that class. Explore C07C
Ranked #38,278 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Watanabe Oyster Laboratory Co., Ltd. against W.R. Wagner Family Limited Partnership, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 31.2/100 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.