Where does Nippon Carbide Industries Co., Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nippon Carbide Industries Co., Inc. ranks #18,955 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 Nippon Carbide Industries Co., Inc. hold?

Nippon Carbide Industries Co., Inc. holds 15 US utility patents granted between 2015 and 2024, spanning 19 technology areas.

What is Nippon Carbide Industries Co., Inc.'s Innovation Score?

Nippon Carbide Industries Co., Inc. has an Innovation Score of 41.8 out of 100 (top 32% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nippon Carbide Industries Co., Inc. focus on?

Nippon Carbide Industries Co., Inc.'s top technology area is G02B (Optical Elements, Systems OR Apparatus) with 8 patents, ranking #1,251 of 4,891 assignees active in that subclass. Grants appear in 19 CPC subclasses total.

Is Nippon Carbide Industries Co., Inc.'s patent grant rate increasing or decreasing?

Nippon Carbide Industries Co., Inc.'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 Nippon Carbide Industries Co., Inc.'s patents?

Nippon Carbide Industries Co., Inc.'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 Nippon Carbide Industries Co., Inc. 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

Nippon Carbide Industries Co., Inc.

USPTO PatentsView assignee record - 15 granted patents across 19 technology areas, recorded in grant years 2015–2024. 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: G02B (Optical Elements, Systems OR Apparatus).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Nippon ranks #18,955 of 49,997 tracked US assignees by granted-patent volume, with 15 patents across 19 technology areas.

#18,955
of 49,997 US assignees by volume: Top 32%
by Innovation Score (41.8/100): 11.3
avg claims per patent: -75%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R18955 · Foreign Corporation #18,955 · 15 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 15 grants
MID-PACK #18,955/49,997
PHOTO-FINISH Nifco America
CPC-FOCUS G02B · 19 areas
INNOV-PAR 41.8/100
CLAIMS-PAR 11.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -75% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Nifco America Corp. (±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 Nippon’s 41.8 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 9.6 pts (23%) Velocity 10.0 pts (24%) Breadth 15.4 pts (37%) Claim depth 6.8 pts (16%)

Qualcomm Incorporated · highest

85
Nippon Carbide… · this assignee

42
3D Lighting… · lowest

7

What this shows Nippon's Innovation Score is 41.8/100 (top 32% 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 Nippon?

Each dot is one of Nippon’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). Nippon’s own 11.3 claims/patent is ABOVE the 7.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Nippon's grants concentrate

Nippon Carbide Industries Co., Inc. is a focused PatentsView assignee: 19 CPC subclasses with 53.3% of grants classified under G02B (Optical Elements, Systems OR Apparatus). Peak complete grant year is 2015 (5 grants) versus a trough of 1 in 2022. By volume, Nippon sits between Nifco America Corp. and NOX II, Ltd..

Nippon's three-year grant acceleration

Nippon Carbide Industries Co., Inc. shows 3 grants in 2022–2024 against only 2 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.

Nifco America

15
Nileworks

15
Nine IP

15
Ningbo Meace PET…

15
Nisshin Engineeri…

15
NOK Klueber

15
North American Li…

15
NOX II

15
Nippon Carbide In… ◀

15

What this shows Nippon holds 15 patents at rank #18,929, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nippon

By rank, the assignees closest to #18,929 in granted patent volume.

Leaders in G02B (Optical Elements)

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

Nippon's Innovation Score vs. every tracked assignee

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

42 Top 32% higher than 68% 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 · 2015–2024

Grants by year

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

View data table

Nippon Carbide Industries Co., Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	33.3%
2016	3	20.0%
2018	2	13.3%
2019	2	13.3%
2022	1	6.7%
2024	2	13.3%

Which technologies does Nippon Carbide Industries Co., Inc. patent most?

G02B - Optical Elements, Systems OR Apparatus 8

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 5

C07C - Acyclic OR Carbocyclic Compounds 4

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 3

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 2

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 2

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 2

C08L - Compositions OF Macromolecular Compounds 2

G09F - DISPLAYING; ADVERTISING; SIGNS; Labels OR NAME-PLATES; Seals 2

G02F - Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters 2

G03B - Apparatus OR Arrangements FOR Taking Photographs OR FOR Projecting OR Viewing THEM; Apparatus OR Arrangements Employing Analogous Techniques Using Waves Other Than Optical WAVES; Accessories Therefor 1

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 1

G06K - Graphical Data Reading ; Presentation OF DATA; Record CARRIERS; Handling Record Carriers 1

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 1

Y10T - Technical Subjects Covered BY Former US Classification 1

Top 15 of 19 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

Nippon Carbide Industries Co., Inc.'s patent record in context - here's where to go next.

Nippon Carbide Industries Co., Inc.'s lead technology class is G02B (Optical Elements, Systems OR Apparatus), 53.3% of its portfolio - see every assignee active in that class. Explore G02B
Ranked #18,955 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nippon Carbide Industries Co., Inc. against Nifco America Corp., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 41.8/100 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.