USPTO 2015–2025 USPTO PatentsView Foreign Corporation

NOF Corporation

USPTO PatentsView assignee record - 136 granted patents across 59 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C08G (MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS).

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

Explore the portfolio See the ranking

136

Total patents granted

CPC technology areas

8.2

Avg claims per patent

+27%

5-year filing velocity

The verdict

NOF holds 136 US patents across 59 technology areas, rank #2,827 of 50,000 tracked assignees.

#2,827
of 50,000 US assignees by volume: Top 10%
by Innovation Score (52.6/100): 8.2
avg claims per patent: +27%
filing velocity, last 5 yrs

Portfolio overview

NOF Corporation has been granted 136 US utility patents between 2015 and 2025, placing NOF Corporation at rank #2,827 across all assignees tracked by PlainPatent. This portfolio spans 59 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.2 claims per patent with primary concentration in C08G (MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS). As a Foreign Corporation, NOF Corporation is one of the broader-portfolio assignees in the PatentsView dataset. By volume, NOF sits between Industry Academy Cooperation Foundation Of Sejong University (136 patents, rank #2,823) and SK Chemicals Co., Ltd. (136 patents, rank #2,831) - the closest US assignees by grant volume. The composite Innovation Score of 52.6/100 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 76 grants, compared with 60 in the 2015–2019 window, a +27% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. 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. NOF Corporation's 8.2 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 59 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark NOF Corporation against peers pursuing similar technology classes.

Industry Academy…

136
Jungheinrich

136
Nihon Micronics

136
Makino Milling Ma…

136
Parade

136
Playnitride Displ…

136
Shell USA

136
SK Chemicals

136
NOF ◀

136

What this shows NOF holds 136 patents at rank #2,827, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near NOF

By rank, the assignees closest to #2,827 in granted patent volume.

Leaders in C08G (Macromolecular Compounds Obtained Otherwise THAN BY React…)

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

NOF's Innovation Score vs. every tracked assignee

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

53 Top 10% higher than 90% 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 · 2015–2025

Grants by year

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

View data table

NOF Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	12	8.8%
2016	9	6.6%
2017	8	5.9%
2018	13	9.6%
2019	18	13.2%
2020	13	9.6%
2021	11	8.1%
2022	11	8.1%
2023	11	8.1%
2024	14	10.3%
2025	16	11.8%

Which technologies does NOF Corporation patent most?

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 48

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 45

C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 34

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 25

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 21

C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 15

C07D - HETEROCYCLIC COMPOUNDS 15

A61Q - SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS 14

C10M - LUBRICATING COMPOSITIONS ; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION 12

A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS 12

C10N - INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS 11

C07K - PEPTIDES 10

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 10

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 9

A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES 9

Top 15 of 59 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Growing

Where it ranks

Overall rank by patents

#2,827

Across all tracked assignees

Innovation Score

52.6 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 NOF Corporation hold?

NOF Corporation holds 136 US granted patents filed between 2015 and 2025, spanning 59 technology areas.

What is NOF Corporation's Innovation Score?

NOF Corporation has an Innovation Score of 52.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does NOF Corporation focus on?

NOF Corporation's top technology area is C08G (MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS) with 48 patents. The company has filed patents in 59 CPC subclasses total.

Is NOF Corporation's patent filing rate increasing or decreasing?

NOF Corporation's recent filing velocity is +27% compared to the prior five-year period. The company is maintaining or growing its patent output.

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

NOF Corporation's patents average 8.2 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the NOF 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.

How to use this portfolio

NOF's 136 grants land it in the top 10% 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 - NOF ranks #2,827 of 50,000. Top 50 holders
Most of this portfolio concentrates in C08G - see who else leads that technology area. C08G 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.