Where does Zuiko Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zuiko Corporation ranks #3,032 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 Zuiko Corporation hold?

Zuiko Corporation holds 126 US utility patents granted between 2015 and 2025, spanning 38 technology areas.

What is Zuiko Corporation's Innovation Score?

Zuiko Corporation has an Innovation Score of 52.2 out of 100 (top 10% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Zuiko Corporation's recent grant velocity is +31% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

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

Zuiko Corporation's patents average 8.9 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 Zuiko 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 Foreign Corporation

Zuiko Corporation

Q: What technology areas does Zuiko Corporation focus on?

Zuiko Corporation's top technology area is A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs) with 102 patents, ranking #49 of 3,082 assignees active in that subclass. Grants appear in 38 CPC subclasses total.

USPTO PatentsView assignee record - 126 granted patents across 38 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: A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Zuiko ranks #3,032 of 49,997 tracked US assignees by granted-patent volume, with 126 patents across 38 technology areas.

#3,032
of 49,997 US assignees by volume: Top 10%
by Innovation Score (52.2/100): 8.9
avg claims per patent: +31%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R3032 · Foreign Corporation #3,032 · 126 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MID 126 grants
TOP-DECILE #3,032/49,997
PHOTO-FINISH dSPACE digital…
CPC-FOCUS A61F · 38 areas
INNOV-PAR 52.2/100
CLAIMS-PAR 8.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +31% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: dSPACE digital signal processing and control engineering GmbH (±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 Zuiko’s 52.2 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 16.7 pts (32%) Velocity 8.3 pts (16%) Breadth 21.8 pts (42%) Claim depth 5.4 pts (10%)

Qualcomm Incorporated · highest

85
Calix · near

52
Pacira Pharmaceuticals · near

52
Shinshu University · near

52
Hanwha Aerospace · near

52
Zuiko · this assignee

52
3D Lighting… · lowest

7

What this shows Zuiko's Innovation Score is 52.2/100 (top 10% 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 Zuiko?

Each dot is one of Zuiko’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). Zuiko’s own 8.9 claims/patent is at or below the 15.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Zuiko's grants concentrate

Zuiko Corporation is a focused PatentsView assignee: 38 CPC subclasses with 81% of grants classified under A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device). Peak complete grant year is 2023 (18 grants) versus a trough of 7 in 2017. By volume, Zuiko sits between THE Hillman Group, Inc. and Fingerprint Cards AB.

Zuiko's three-year grant acceleration

From 2019–2021 to 2022–2024, Zuiko Corporation moved from 37 to 46 grants (1.24x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #716. See the growth leaderboard.

THE Hillman Group

126
Tactual Labs

126
Wiz

126
Zobele Holding SPA

126
dspace digital si…

126
Zuiko ◀

126
Bic-violex

125
Cabot

125
Fingerprint Cards…

125

What this shows Zuiko holds 126 patents at rank #3,031, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zuiko

By rank, the assignees closest to #3,031 in granted patent volume.

Leaders in A61F (Filters Implantable Into Blood Vessels)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Zuiko, neither rank-band nor same-CPC leaders (those blocks stay above). In A61F (Filters Implantable Into Blood Vessels), Zuiko ranks #49 of 3,082 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (52 here).

Hanwha Aerospace Co., Ltd. 52 Shinshu University 52 Calix, Inc. 52 Pacira Pharmaceuticals, Inc. 52

Similar claim depth

Nearest assignees by average claims per patent (8.9 here).

Nidec Copal Corporation 8.9 avg Posco Co., Ltd 8.9 avg AptarGroup, Inc. 8.9 avg Meiji Co., Ltd. 8.9 avg

Zuiko's Innovation Score vs. every tracked assignee

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

52 Top 10% higher than 90% 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

Zuiko Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	8	6.3%
2016	8	6.3%
2017	7	5.6%
2018	14	11.1%
2019	15	11.9%
2020	12	9.5%
2021	10	7.9%
2022	13	10.3%
2023	18	14.3%
2024	15	11.9%
2025partial year	6	4.8%

Which technologies does Zuiko Corporation patent most?

A61F - Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs 102

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 36

B65H - Handling Thin OR Filamentary Material, e.g. Sheets, Webs, Cables 36

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 31

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 29

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 11

B29K - Indexing Scheme Associated With Subclasses B29b, B29c OR B29d, Relating TO Moulding Materials OR TO Materials FOR ; Moulds, ; Reinforcements, Fillers OR Preformed Parts, e.g. Inserts 10

Y10T - Technical Subjects Covered BY Former US Classification 10

B26D - CUTTING; Details Common TO Machines FOR Perforating, Punching, Cutting-out, Stamping-out OR Severing 8

D04H - Making Textile Fabrics, e.g. From Fibres OR Filamentary Material ; Fabrics Made BY Such Processes OR Apparatus, e.g. Felts, Non-woven FABRICS; COTTON-WOOL; Wadding ; ; Non-woven Fabrics From Staple Fibres, Filaments OR Yarns, Bonded With AT Least ONE Web-like Material During Their Consolidation 7

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 3

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 3

B25H - Workshop Equipment, e.g. FOR Marking-out WORK; Storage Means FOR Workshops 3

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 3

B31F - Mechanical Working OR Deformation OF Paper, Cardboard OR Material Worked IN A Manner Analogous TO Paper 3

Top 15 of 38 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

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

Zuiko Corporation's lead technology class is A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device), 81% of its portfolio - see every assignee active in that class. Explore A61F
Ranked #3,032 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zuiko Corporation against THE Hillman Group, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 52.2/100 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.