USPTO 2015–2025 USPTO PatentsView Foreign Corporation

BWA Water Additives UK Limited

USPTO PatentsView assignee record - 5 granted patents across 8 technology areas, active 2018–2020. 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

16.8

Avg claims per patent

-75%

5-year filing velocity

The verdict

BWA holds 5 US patents across 8 technology areas, rank #45,215 of 50,000 tracked assignees.

#45,215
of 50,000 US assignees by volume: Top 80%
by Innovation Score (26.3/100): 16.8
avg claims per patent: -75%
filing velocity, last 5 yrs

Portfolio overview

BWA Water Additives UK Limited has been granted 5 US utility patents between 2018 and 2020, placing BWA Water Additives UK Limited at rank #45,215 across all assignees tracked by PlainPatent. This portfolio spans 8 distinct Cooperative Patent Classification (CPC) subclasses, averaging 16.8 claims per patent with primary concentration in C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE). As a Foreign Corporation, BWA Water Additives UK Limited is one of the more focused assignees in the PatentsView dataset. By volume, BWA sits between Bunka Shutter Co., Ltd. (5 patents, rank #45,211) and Baker Group, LLP (5 patents, rank #45,219) - the closest US assignees by grant volume. The composite Innovation Score of 26.3/100 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 1 grants, compared with 4 in the 2015–2019 window, a -75% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. BWA Water Additives UK Limited's 16.8 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 8 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark BWA Water Additives UK Limited against peers pursuing similar technology classes.

Bunka Shutter

5
Burger KING

5
Burgopak

5
Buzzinbees

5
BWT Beijing

5
Backoffice Associ…

5
Baidu Online Netw…

5
Baker Group LLP

5
BWA Water Additiv… ◀

5

What this shows BWA holds 5 patents at rank #45,215, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near BWA

By rank, the assignees closest to #45,215 in granted patent volume.

Leaders in C02F (Treatment OF Water)

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

BWA's Innovation Score vs. every tracked assignee

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

26 Top 80% higher than 20% 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 · 2018–2020

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

BWA Water Additives UK Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	2	40.0%
2019	2	40.0%
2020	1	20.0%

Which technologies does BWA Water Additives UK Limited patent most?

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 4

A01N - PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF ; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES ; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS 4

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 1

D21H - PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR 1

F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 1

D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR 1

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 1

E21B - EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS 1

Top 8 of 8 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#45,215

Across all tracked assignees

Innovation Score

26.3 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 BWA Water Additives UK Limited hold?

BWA Water Additives UK Limited holds 5 US granted patents filed between 2018 and 2020, spanning 8 technology areas.

What is BWA Water Additives UK Limited's Innovation Score?

BWA Water Additives UK Limited has an Innovation Score of 26.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does BWA Water Additives UK Limited focus on?

BWA Water Additives UK Limited's top technology area is C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE) with 4 patents. The company has filed patents in 8 CPC subclasses total.

Is BWA Water Additives UK Limited's patent filing rate increasing or decreasing?

BWA Water Additives UK Limited's recent filing velocity is -75% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for BWA Water Additives UK Limited's patents?

BWA Water Additives UK Limited's patents average 16.8 claims each. This falls within the standard range, providing solid legal coverage.

How is the BWA Water Additives UK Limited 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

BWA's 5 grants land it in the top 80% 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 - BWA ranks #45,215 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.