USPTO 2015–2025 USPTO PatentsView US Corporation

Kenall Manufacturing Company

USPTO PatentsView assignee record - 88 granted patents across 18 technology areas, active 2015–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: 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).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

11.3

Avg claims per patent

-58%

5-year filing velocity

The verdict

Kenall holds 88 US patents across 18 technology areas, rank #4,089 of 50,000 tracked assignees.

#4,089
of 50,000 US assignees by volume: Top 39%
by Innovation Score (39.2/100): 11.3
avg claims per patent: -58%
filing velocity, last 5 yrs

Portfolio overview

Kenall Manufacturing Company has been granted 88 US utility patents between 2015 and 2024, placing Kenall Manufacturing Company at rank #4,089 across all assignees tracked by PlainPatent. This portfolio spans 18 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.3 claims per patent with primary concentration in 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). As a US Corporation, Kenall Manufacturing Company is one of the more focused assignees in the PatentsView dataset. By volume, Kenall sits between Institut National DES Sciences Appliquées DE LYON (88 patents, rank #4,085) and Magna Seating Inc. (88 patents, rank #4,093) - the closest US assignees by grant volume. The composite Innovation Score of 39.2/100 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 26 grants, compared with 62 in the 2015–2019 window, a -58% 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. Kenall Manufacturing Company's 11.3 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 18 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Kenall Manufacturing Company against peers pursuing similar technology classes.

Institut National…

88
Ideastream Consum…

88
Johnson Controls

88
Joy Global Surfac…

88
Kapsch Trafficcom

88
LIKO Research & D…

88
Luminex

88
Magna Seating

88
Kenall Manufactur… ◀

88

What this shows Kenall holds 88 patents at rank #4,089, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kenall

By rank, the assignees closest to #4,089 in granted patent volume.

Leaders in F21Y (Indexing Scheme Associated WITH Subclasses F21K)

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

Kenall's Innovation Score vs. every tracked assignee

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

39 Top 39% higher than 61% 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 · 2015–2024

Grants by year

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

View data table

Kenall Manufacturing Company patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	7	8.0%
2016	12	13.6%
2017	20	22.7%
2018	8	9.1%
2019	15	17.0%
2020	9	10.2%
2021	8	9.1%
2022	4	4.5%
2023	3	3.4%
2024	2	2.3%

Which technologies does Kenall Manufacturing Company patent most?

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 38

F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 38

F21S - NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS 27

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 26

F21W - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS 16

F21K - NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR 16

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 12

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 11

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 11

A61N - ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY 11

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 4

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 3

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 3

B29D - PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 2

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 2

Top 15 of 18 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#4,089

Across all tracked assignees

Innovation Score

39.2 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 Kenall Manufacturing Company hold?

Kenall Manufacturing Company holds 88 US granted patents filed between 2015 and 2024, spanning 18 technology areas.

What is Kenall Manufacturing Company's Innovation Score?

Kenall Manufacturing Company has an Innovation Score of 39.2 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kenall Manufacturing Company focus on?

Kenall Manufacturing Company's top technology area is 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) with 38 patents. The company has filed patents in 18 CPC subclasses total.

Is Kenall Manufacturing Company's patent filing rate increasing or decreasing?

Kenall Manufacturing Company's recent filing velocity is -58% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Kenall Manufacturing Company's patents?

Kenall Manufacturing Company's patents average 11.3 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Kenall Manufacturing Company 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

Kenall's 88 grants land it in the top 39% 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 - Kenall ranks #4,089 of 50,000. Top 50 holders
Most of this portfolio concentrates in F21Y - see who else leads that technology area. F21Y 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.