USPTO 2015–2025 USPTO PatentsView Foreign Corporation

DE NORA Permelec Ltd

USPTO PatentsView assignee record - 33 granted patents across 19 technology areas, active 2016–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C25B (ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

8.0

Avg claims per patent

+213%

5-year filing velocity

The verdict

DE holds 33 US patents across 19 technology areas, rank #9,481 of 50,000 tracked assignees.

#9,481
of 50,000 US assignees by volume: Top 43%
by Innovation Score (37.6/100): 8.0
avg claims per patent: +213%
filing velocity, last 5 yrs

Portfolio overview

DE NORA Permelec Ltd has been granted 33 US utility patents between 2016 and 2025, placing DE NORA Permelec Ltd at rank #9,481 across all assignees tracked by PlainPatent. This portfolio spans 19 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.0 claims per patent with primary concentration in C25B (ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR). As a Foreign Corporation, DE NORA Permelec Ltd is one of the more focused assignees in the PatentsView dataset. By volume, DE sits between Crowdcomfort, Inc. (33 patents, rank #9,477) and Drum Workshop, Inc. (33 patents, rank #9,485) - the closest US assignees by grant volume. The composite Innovation Score of 37.6/100 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 25 grants, compared with 8 in the 2015–2019 window, a +213% 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. DE NORA Permelec Ltd's 8.0 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 19 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark DE NORA Permelec Ltd against peers pursuing similar technology classes.

Crowdcomfort

33
D'addario &

33
Daiwa Kasei Indus…

33
David Austin Roses

33
Dicon Fiberoptics

33
Douyin Vision

33
DPG USA

33
Drum Workshop

33
DE NORA Permelec ◀

33

What this shows DE holds 33 patents at rank #9,481, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near DE

By rank, the assignees closest to #9,481 in granted patent volume.

Leaders in C25B (Electrolytic OR Electrophoretic Processes FOR THE Product…)

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

DE's Innovation Score vs. every tracked assignee

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

38 Top 43% higher than 57% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

DE NORA Permelec Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	3.0%
2017	1	3.0%
2018	3	9.1%
2019	3	9.1%
2020	8	24.2%
2021	3	9.1%
2022	5	15.2%
2023	3	9.1%
2024	3	9.1%
2025	3	9.1%

Which technologies does DE NORA Permelec Ltd patent most?

C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR 32

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 20

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 11

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 9

B01D - SEPARATION 5

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 3

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 3

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 3

C25D - PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR 3

C25C - PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR 2

C23F - NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D 2

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 2

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 2

G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR 2

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 1

Top 15 of 19 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#9,481

Across all tracked assignees

Innovation Score

37.6 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 DE NORA Permelec Ltd hold?

DE NORA Permelec Ltd holds 33 US granted patents filed between 2016 and 2025, spanning 19 technology areas.

What is DE NORA Permelec Ltd's Innovation Score?

DE NORA Permelec Ltd has an Innovation Score of 37.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does DE NORA Permelec Ltd focus on?

DE NORA Permelec Ltd's top technology area is C25B (ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR) with 32 patents. The company has filed patents in 19 CPC subclasses total.

Is DE NORA Permelec Ltd's patent filing rate increasing or decreasing?

DE NORA Permelec Ltd's recent filing velocity is +213% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for DE NORA Permelec Ltd's patents?

DE NORA Permelec Ltd's patents average 8.0 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the DE NORA Permelec 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

DE's 33 grants land it in the top 43% 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 - DE ranks #9,481 of 50,000. Top 50 holders
Most of this portfolio concentrates in C25B - see who else leads that technology area. C25B 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.