USPTO 2015–2025 USPTO PatentsView US Corporation

Kerr Corporation

USPTO PatentsView assignee record - 31 granted patents across 21 technology areas, active 2015–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A61C (DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

15.3

Avg claims per patent

-76%

5-year filing velocity

The verdict

Kerr holds 31 US patents across 21 technology areas, rank #10,081 of 50,000 tracked assignees.

#10,081
of 50,000 US assignees by volume: Top 37%
by Innovation Score (40.0/100): 15.3
avg claims per patent: -76%
filing velocity, last 5 yrs

Portfolio overview

Kerr Corporation has been granted 31 US utility patents between 2015 and 2023, placing Kerr Corporation at rank #10,081 across all assignees tracked by PlainPatent. This portfolio spans 21 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.3 claims per patent with primary concentration in A61C (DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE). As a US Corporation, Kerr Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Kerr sits between Keiper Seating Mechanisms Co., Ltd. (31 patents, rank #10,077) and Lanxess Corporation (31 patents, rank #10,085) - the closest US assignees by grant volume. The composite Innovation Score of 40.0/100 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 6 grants, compared with 25 in the 2015–2019 window, a -76% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. Kerr Corporation's 15.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 21 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Kerr Corporation against peers pursuing similar technology classes.

Keiper Seating Me…

31
Kinki University

31
Kyosan Denki

31
Kent Displays

31
Kindred Systems

31
Kuroda Precision…

31
KÄRcher North Ame…

31
Lanxess

31
Kerr ◀

31

What this shows Kerr holds 31 patents at rank #10,081, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kerr

By rank, the assignees closest to #10,081 in granted patent volume.

Leaders in A61C (Dentistry)

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

Kerr's Innovation Score vs. every tracked assignee

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

40 Top 37% higher than 63% 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 · 2015–2023

Grants by year

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

View data table

Kerr Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	6.5%
2016	9	29.0%
2017	9	29.0%
2018	4	12.9%
2019	1	3.2%
2020	2	6.5%
2021	2	6.5%
2022	1	3.2%
2023	1	3.2%

Which technologies does Kerr Corporation patent most?

A61C - DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE 17

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 9

F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 6

F21Y - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED 6

F21W - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS 6

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 6

F21L - LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION 5

A61B - DIAGNOSIS; SURGERY; IDENTIFICATION 4

G02C - SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES 4

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 3

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 3

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

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 2

C09C - TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS 2

B29C - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 2

Top 15 of 21 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#10,081

Across all tracked assignees

Innovation Score

40.0 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 Kerr Corporation hold?

Kerr Corporation holds 31 US granted patents filed between 2015 and 2023, spanning 21 technology areas.

What is Kerr Corporation's Innovation Score?

Kerr Corporation has an Innovation Score of 40.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kerr Corporation focus on?

Kerr Corporation's top technology area is A61C (DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE) with 17 patents. The company has filed patents in 21 CPC subclasses total.

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

Kerr Corporation's recent filing velocity is -76% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

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

Kerr Corporation's patents average 15.3 claims each. This falls within the standard range, providing solid legal coverage.

How is the Kerr 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

Kerr's 31 grants land it in the top 37% 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 - Kerr ranks #10,081 of 50,000. Top 50 holders
Most of this portfolio concentrates in A61C - see who else leads that technology area. A61C 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.