PlainPatent

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 filing trajectory.

692
US patents granted
A62
Parent CPC class
20
Active assignees
+8%
5-yr velocity

The verdict

Chemical Means FOR Extinguishing Fires OR FOR Combating O… ranks #504 of 670 CPC technology areas - 692 US patents granted since 2015, with filing up 8% over five years.

#504
of 670 CPC technology areas
692
US patents granted, 2015–2025
Tyco Fire Products
leading assignee (44)
+8%
filing velocity, last 5 yrs
Top assignee: Tyco Fire Products Lp (44 patents)

CPC subclass A62D - CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS - covers 692 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class A62 (LIFE-SAVING; FIRE-FIGHTING). See our CPC classification guide for how the system works.

The competitive landscape in A62D is shaped by 20 distinct companies actively filing in this space. Tyco Fire Products Lp leads with 44 patents, followed by THE Chemours Company FC, Llc at 39 grants and FRS Group, Llc at 23.

Filing activity in A62D is up 8% over the past five years versus 2015-2019, a relatively steady filing pace. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is A62D innovation accelerating?

US utility-patent grants per year in A62D, 2015–2025 - recent five years are up 8% versus 2015–2019.

304050607080 20152016201720182019202020212022202320242025 35

Who leads A62D?

The 12 most active assignees in CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS - wider bars mean more grants

patents

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.

Source USPTO PatentsView, granted utility patents As of 2015–2025 grant years
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

About This Class

CPC subclass A62D belongs to class A62.

692 patents were granted in this class between 2015 and 2025.

20 companies actively patent in this space.

Classification System

Cooperative Patent Classification (CPC) is a hierarchical patent classification system used by the USPTO and EPO.

← All Technology Classes Technology Rankings →

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).

Top 14 A62D assignees by class footprint. Bubble size = patents in A62D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 51015202530 01020304050 Patents in A62D Avg claims / patent (company-wide) Tyco Fire ProductsThe Chemours FcFrs GroupStepanKiddeXi'an Westpeace Fire…Mighty Fire BreakerEarthcleanBlÜCherAmerican SterilizerYamato ProtecHmr SolutionsMinimax Viking Resear…Verde Environmental
Top 14 A62D assignees by class footprint. Bubble size = patents in A62D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class A62D?
CPC subclass A62D covers CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS. It belongs to CPC class A62 (LIFE-SAVING; FIRE-FIGHTING), with 692 US utility patents granted since 2015.
How many patents have been filed in A62D?
692 US utility patents were granted in CPC subclass A62D between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in A62D?
Tyco Fire Products Lp leads A62D with 44 patents, making it the most active assignee in this technology area.
How is patent data for A62D collected?
Patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office. It covers all US granted utility patents and assigns CPC codes based on the technology described in each patent.
What is the difference between CPC class and subclass?
A CPC class (e.g., A62) is a broad technology category. Subclasses like A62D provide finer granularity within that category. PlainPatent organizes data at the subclass level (4-character codes) for the most useful view of technology domains.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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.