USPTO 2015–2025 USPTO PatentsView Foreign Corporation

C.uyemura & Co., Ltd.

USPTO PatentsView assignee record - 46 granted patents across 28 technology areas, active 2015–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C23C (COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAP).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

8.3

Avg claims per patent

+71%

5-year filing velocity

The verdict

C.uyemura holds 46 US patents across 28 technology areas, rank #7,123 of 50,000 tracked assignees.

#7,123
of 50,000 US assignees by volume: Top 33%
by Innovation Score (41.3/100): 8.3
avg claims per patent: +71%
filing velocity, last 5 yrs

Portfolio overview

C.uyemura & Co., Ltd. has been granted 46 US utility patents between 2015 and 2024, placing C.uyemura & Co., Ltd. at rank #7,123 across all assignees tracked by PlainPatent. This portfolio spans 28 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.3 claims per patent with primary concentration in C23C (COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAP). As a Foreign Corporation, C.uyemura & Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, C.uyemura sits between BINJ Laboratories, Inc. (46 patents, rank #7,119) and Crisi Medical Systems, Inc. (46 patents, rank #7,127) - the closest US assignees by grant volume. The composite Innovation Score of 41.3/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 29 grants, compared with 17 in the 2015–2019 window, a +71% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. C.uyemura & Co., Ltd.'s 8.3 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 28 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark C.uyemura & Co., Ltd. against peers pursuing similar technology classes.

BINJ Laboratories

46
Bradshaw Internat…

46
Breeo

46
BÜHLER Motor

46
Canon Components

46
Changsha Universi…

46
CK Materials LAB

46
Crisi Medical Sys…

46
C Uyemura & ◀

46

What this shows C.uyemura holds 46 patents at rank #7,123, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Cuyemura

By rank, the assignees closest to #7,123 in granted patent volume.

Leaders in C23C (Coating Metallic Material)

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

C.uyemura's Innovation Score vs. every tracked assignee

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

41 Top 33% higher than 67% of 50,000 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 · 2015–2024

Grants by year

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

View data table

C.uyemura & Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	10.9%
2016	3	6.5%
2017	4	8.7%
2018	1	2.2%
2019	4	8.7%
2020	5	10.9%
2021	11	23.9%
2022	6	13.0%
2023	3	6.5%
2024	4	8.7%

Which technologies does C.uyemura & Co., Ltd. patent most?

C23C - COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 32

C25D - PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR 22

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 11

B05C - APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL 10

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 7

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 4

B08B - CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 4

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 3

B05B - SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 3

C22C - ALLOYS 3

B01F - MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING 2

B60R - VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR 2

A45D - HAIRDRESSING OR SHAVING EQUIPMENT ; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING 2

B25B - TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING 2

D06F - LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES 2

Top 15 of 28 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#7,123

Across all tracked assignees

Innovation Score

41.3 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does C.uyemura & Co., Ltd. hold?

C.uyemura & Co., Ltd. holds 46 US granted patents filed between 2015 and 2024, spanning 28 technology areas.

What is C.uyemura & Co., Ltd.'s Innovation Score?

C.uyemura & Co., Ltd. has an Innovation Score of 41.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does C.uyemura & Co., Ltd. focus on?

C.uyemura & Co., Ltd.'s top technology area is C23C (COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL) with 32 patents. The company has filed patents in 28 CPC subclasses total.

Is C.uyemura & Co., Ltd.'s patent filing rate increasing or decreasing?

C.uyemura & Co., Ltd.'s recent filing velocity is +71% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for C.uyemura & Co., Ltd.'s patents?

C.uyemura & Co., Ltd.'s patents average 8.3 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the C.uyemura & 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.

How to use this portfolio

C.uyemura's 46 grants land it in the top 33% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - C.uyemura ranks #7,123 of 50,000. Top 50 holders
Most of this portfolio concentrates in C23C - see who else leads that technology area. C23C leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.