USPTO 2015–2025 USPTO PatentsView US Corporation

NCH Corporation

USPTO PatentsView assignee record - 60 granted patents across 50 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

26.8

Avg claims per patent

+14%

5-year filing velocity

The verdict

NCH holds 60 US patents across 50 technology areas, rank #5,697 of 50,000 tracked assignees.

#5,697
of 50,000 US assignees by volume: Top 4%
by Innovation Score (59.0/100): 26.8
avg claims per patent: +14%
filing velocity, last 5 yrs

Portfolio overview

NCH Corporation has been granted 60 US utility patents between 2015 and 2025, placing NCH Corporation at rank #5,697 across all assignees tracked by PlainPatent. This portfolio spans 50 distinct Cooperative Patent Classification (CPC) subclasses, averaging 26.8 claims per patent with primary concentration in C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE). As a US Corporation, NCH Corporation is one of the broader-portfolio assignees in the PatentsView dataset. By volume, NCH sits between Lantech.com, Llc (60 patents, rank #5,693) and Nextlabs, Inc. (60 patents, rank #5,701) - the closest US assignees by grant volume. The composite Innovation Score of 59.0/100 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 32 grants, compared with 28 in the 2015–2019 window, a +14% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. The US 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. NCH Corporation's 26.8 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while a multi-domain presence across 50 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark NCH Corporation against peers pursuing similar technology classes.

Lantech com

60
Lockheed Martin E…

60
Mueller Martini H…

60
Navico

60
Niterra

60
Network-1

60
New Motech

60
Nextlabs

60
NCH ◀

60

What this shows NCH holds 60 patents at rank #5,697, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near NCH

By rank, the assignees closest to #5,697 in granted patent volume.

Leaders in C02F (Treatment OF Water)

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

NCH's Innovation Score vs. every tracked assignee

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

59 Top 4% higher than 96% 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

NCH Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	3.3%
2016	7	11.7%
2017	2	3.3%
2018	9	15.0%
2019	8	13.3%
2020	4	6.7%
2021	10	16.7%
2022	4	6.7%
2023	5	8.3%
2024	7	11.7%
2025	2	3.3%

Which technologies does NCH Corporation patent most?

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 25

C10M - LUBRICATING COMPOSITIONS ; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION 16

C10N - INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS 16

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 9

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 7

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 7

A23L - FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF 7

B01F - MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING 4

A01K - ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS 4

C12M - APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS 4

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 4

C11D - DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL 4

A23V - INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION 4

B01D - SEPARATION 3

A23K - FODDER 3

Top 15 of 50 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Complex

Velocity Growing

Where it ranks

Overall rank by patents

#5,697

Across all tracked assignees

Innovation Score

59.0 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 NCH Corporation hold?

NCH Corporation holds 60 US granted patents filed between 2015 and 2025, spanning 50 technology areas.

What is NCH Corporation's Innovation Score?

NCH Corporation has an Innovation Score of 59.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does NCH Corporation focus on?

NCH Corporation's top technology area is C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE) with 25 patents. The company has filed patents in 50 CPC subclasses total.

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

NCH Corporation's recent filing velocity is +14% compared to the prior five-year period. The company is maintaining or growing its patent output.

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

NCH Corporation's patents average 26.8 claims each. This indicates complex, broadly scoped patents that are harder for competitors to design around.

How is the NCH 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

NCH's 60 grants land it in the top 4% 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 - NCH ranks #5,697 of 50,000. Top 50 holders
Most of this portfolio concentrates in C02F - see who else leads that technology area. C02F 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.