CPC technology class · A62

A62D - Chemical Means For Extinguishing Fires Or For Combating O…

Chemical means for extinguishing fires or for combating or protecting against harmful chemical agents; chemical materials for use in breathing apparatus. 692 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

692
US patents granted: #3/3
in A62: 11.0%
A62 class share: -4%
5-yr velocity

The verdict

According to USPTO PatentsView, Chemical Means For Extinguishing Fires Or For Combating O… ranks #504 of 670 CPC technology areas - 692 US patents granted since 2015, with recorded grant volume down 4% over five years.

#504
of 670 CPC technology areas: 692
US patents granted, 2015–2025: Tyco Fire Products
leading assignee (44): -4%
grant velocity, last 5 yrs

How A62D's grant cadence moved

Between 2020–2024, A62D recorded 302 grants versus 313 in 2015–2019 (-4% equal-window velocity). Across complete years, output peaked in 2017 at 75 grants and bottomed in 2020 at 56 (+34% peak-over-trough). Lead assignee Tyco Fire Products LP holds 6.4% of the class ; the top three share 15.3%.

Leaderboard read

A62D concentration, lead at 6.4%

Tyco Fire Products LP leads this historical grant record at 6.4% of A62D - us corporation assignees hold 72% of class grants (192 of 268). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 6.4%
Top three share: 15.3%
Lead over #2: 5

Where A62D sits inside A62

Among 3 subclasses in A62 (LIFE-SAVING; Fire-fighting), A62D ranks #3 and holds 11.0% of the parent class's 6,303 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

A62C 2,939 A62B 2,672

Rising assignees active in A62D

Company-wide grant multiples (2022–2024 vs 2019–2021) among assignees with ≥5 patents in this subclass. Growth is company-wide; class patent counts are subclass-specific.

#1 Mighty Fire Breaker LLC 19x 0 → 19 company-wide · 7 in A62D
#2 FRS Group, LLC 4.25x 4 → 17 company-wide · 23 in A62D
#3 HMR Solutions Inc. 4.00x 1 → 4 company-wide · 5 in A62D
#4 Tyco Fire Products LP 1.51x 76 → 115 company-wide · 44 in A62D
#5 Kidde Technologies, Inc. 1.04x 50 → 52 company-wide · 8 in A62D

A62D grants by year, peak 2017 (75)

US utility-patent grants per year in A62D, 2015–2025 - recent five years are down 4% versus 2015–2019.

Tyco Fire Products

44
The Chemours Fc

39
Frs Group

23
Stepan

19
Kidde

8
Xi'an Westpeace Fire…

8
Mighty Fire Breaker

7
Earthclean

7
BlÜCher

6
American Sterilizer

5
Yamato Protec

5
Hmr Solutions

5

What this shows Tyco Fire Products is the most active filer in A62D, holding 44 of the 692 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

View data table

Top patent holders in CPC subclass A62D
Rank	Company	Patents in A62D
#1	Tyco Fire Products LP	44
#2	THE Chemours Company FC, LLC	39
#3	FRS Group, LLC	23
#4	Stepan Company	19
#5	Kidde Technologies, Inc.	8
#6	Xi'an Westpeace Fire Technology Co., Ltd.	8
#7	Mighty Fire Breaker LLC	7
#8	Earthclean LLC	7
#9	BLÜCHER GMBH	6
#10	American Sterilizer Company	5
#11	Yamato Protec Corporation	5
#12	HMR Solutions Inc.	5
#13	Minimax Viking Research & Development GmbH	4
#14	Verde Environmental Technologies, Inc.	4
#15	TDA Research, Inc.	3
#16	Universite Montpellier 2 Sciences ET Techniques	3
#17	UNIVERSITÄT ZU KÖLN	3
#18	Pyrogenesis Canada Inc.	3
#19	Alter NRG Corp.	3
#20	Breakthrough Technologies, LLC	3

Footprint here vs. claim strategy

Each dot is a leading A62D assignee, placed by how many patents it holds in this class (horizontal) against its company-wide average claims per patent (vertical) - a read on whether the class is led by broad-but-shallow filers or focused deep-claim players.

Top 14 A62D assignees by class footprint. Bubble size = patents in A62D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near A62D's 692-grant footprint

Nationwide nearest neighbors for A62D (#504 of 670 by volume ; lead share 6.4%) - not the A62 parent-class siblings above.

Nearest by grant volume

B44F 693 A41F 683 C25F 701 F05C 683

Nearest by lead-assignee share

A63H 6.4% F24H 6.4% C21B 6.3% G16Y 6.4%

Questions about A62D

Which company holds the most patents in A62D?

Tyco Fire Products LP leads A62D with 44 patents (6.4% of the subclass). By PatentsView assignee type, us corporations account for 72% of class grants.

Which A62D assignees grew fastest recently?

Among assignees with ≥5 grants in A62D, Mighty Fire Breaker LLC shows the highest company-wide grant multiple (19x: 0 grants in 2019–2021 → 19 in 2022–2024) while holding 7 patents in this subclass. Growth is company-wide, not class-only.

How does A62D compare inside parent class A62?

Inside A62 (LIFE-SAVING; Fire-fighting), A62D ranks #3 of 3 subclasses by grant volume and holds 11.0% of the parent class total. The largest sibling is A62C (2,939 grants).

What to do with this data

A62D in context - here's where to go next.

Tyco Fire Products LP leads A62D with 44 grants in this class. See full portfolio
A62D ranks #504 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class A62, the largest sibling subclass is A62C with 2,939 grants. Explore A62C

Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.

Methodology - A62D figures are USPTO PatentsView granted-utility totals for this subclass (692 grants in the tracked window).

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.