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CPC technology class · C06

C06D - Means For Generating Smoke Or Mist

Means for generating smoke or mist; gas-attack compositions; generation of gas for blasting or propulsion (chemical part). 164 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

164
US patents granted
#3/3
in C06
18.1%
C06 class share
-51%
5-yr velocity

The verdict

According to USPTO PatentsView, Means For Generating Smoke Or Mist ranks #612 of 670 CPC technology areas - 164 US patents granted since 2015, with recorded grant volume down 51% over five years.

#612
of 670 CPC technology areas
164
US patents granted, 2015–2025
Tk Holdings
leading assignee (13)
-51%
grant velocity, last 5 yrs

How C06D's grant cadence moved

Between 2020–2024, C06D recorded 51 grants versus 104 in 2015–2019 (-51% equal-window velocity). Across complete years, output peaked in 2019 at 24 grants and bottomed in 2022 at 5 (+380% peak-over-trough). Lead assignee TK Holdings, LLC holds 7.9% of the class ; the top three share 16.5%.

Leaderboard read

C06D concentration, lead at 7.9%

TK Holdings, LLC leads this historical grant record at 7.9% of C06D - us corporation assignees hold 64% of class grants (51 of 80). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
7.9%

13 of 164 grants

Top three share
16.5%

of the class's recorded grants

Lead over #2
5

more grants than Autoliv ASP, Inc.

Where C06D sits inside C06

Among 3 subclasses in C06 (EXPLOSIVES; Matches), C06D ranks #3 and holds 18.1% of the parent class's 908 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

C06B 579 C06C 165

Rising assignees active in C06D

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. #1 Autoliv ASP, Inc. 1.09x 70 → 76 company-wide · 8 in C06D
  2. #2 TRW Airbag Systems GMBH 0.38x 16 → 6 company-wide · 6 in C06D

C06D grants by year, peak 2019 (24)

US utility-patent grants per year in C06D, 2015–2025 - recent five years are down 51% versus 2015–2019.

0510152025 20152016201720182019202020212022202320242025 4

Who leads C06D?

The 12 most active assignees in Means FOR Generating Smoke OR MIST; Gas-attack COMPOSITIONS; Generation OF GAS FOR Blasting OR Propulsion (CHEMICAL PART) - wider bars mean more grants

patents

What this shows Tk Holdings is the most active filer in C06D, holding 13 of the 164 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 C06D
Rank Company Patents in C06D
#1 TK Holdings, LLC 13
#2 Autoliv ASP, Inc. 8
#3 TRW Airbag Systems GMBH 6
#4 Bastion Technologies, Inc. 5
#5 Skunklock, Inc. 4
#6 Cirrus Outdoors, LLC 4
#7 Herakles 3
#8 Aerojet Rocketdyne, Inc. 3
#9 Innospec Limited 3
#10 Robertson Intellectual Properties, LLC 3
#11 TRW Automotive GMBH 2
#12 Takata Corporation 2
#13 Safariland, LLC 2
#14 Terves, LLC 2
#15 Ruag Ammotec GmbH 2
#16 Nexter Munitions 2
#17 Otto Torpedo Company 2
#18 Rheinmetall Waffe Munition GmbH 1
#19 BAE Systems Land & Armaments L.P. 1
#20 ArianeGroup GmbH 1

Footprint here vs. claim strategy

Each dot is a leading C06D 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 C06D assignees by class footprint. Bubble size = patents in C06D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 010203040 051015 Patents in C06D Avg claims / patent (company-wide) Tk HoldingsAutoliv AspTrw Airbag SystemsBastionSkunklockCirrus OutdoorsHeraklesAerojet RocketdyneInnospecRobertson Intellectual…Trw AutomotiveTakataSafarilandTerves
Top 14 C06D assignees by class footprint. Bubble size = patents in C06D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Questions about C06D

Which company holds the most patents in C06D?
TK Holdings, LLC leads C06D with 13 patents (7.9% of the subclass). By PatentsView assignee type, us corporations account for 64% of class grants.
Which C06D assignees grew fastest recently?
Among assignees with ≥5 grants in C06D, Autoliv ASP, Inc. shows the highest company-wide grant multiple (1.09x: 70 grants in 2019–2021 → 76 in 2022–2024) while holding 8 patents in this subclass. Growth is company-wide, not class-only.
How does C06D compare inside parent class C06?
Inside C06 (EXPLOSIVES; Matches), C06D ranks #3 of 3 subclasses by grant volume and holds 18.1% of the parent class total. The largest sibling is C06B (579 grants).

What to do with this data

C06D in context - here's where to go next.

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

Methodology - C06D figures are USPTO PatentsView granted-utility totals for this subclass (164 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.