PlainPatent

CPC technology class · F42

F42D - Blasting

Blasting. 887 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

887
US patents granted
F42
Parent CPC class
20
Active assignees
+35%
5-yr velocity

The verdict

Blasting ranks #473 of 670 CPC technology areas - 887 US patents granted since 2015, with filing up 35% over five years.

#473
of 670 CPC technology areas
887
US patents granted, 2015–2025
Detnet South Africa (…
leading assignee (53)
+35%
filing velocity, last 5 yrs
Top assignee: Detnet South Africa (pty) Ltd (53 patents)

CPC subclass F42D - BLASTING - covers 887 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class F42 (AMMUNITION; BLASTING). See our CPC classification guide for how the system works.

The competitive landscape in F42D is shaped by 20 distinct companies actively filing in this space. Detnet South Africa (pty) Ltd leads with 53 patents, followed by Geodynamics, Inc. at 36 grants and Dynaenergetics Europe Gmbh at 33.

Filing activity in F42D is up 35% over the past five years versus 2015-2019, a sharp acceleration suggesting an emerging or fast-moving technology area. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is F42D innovation accelerating?

US utility-patent grants per year in F42D, 2015–2025 - recent five years are up 35% versus 2015–2019.

5060708090100110 20152016201720182019202020212022202320242025 69

Who leads F42D?

The 12 most active assignees in BLASTING - wider bars mean more grants

patents

What this shows Detnet South Africa (… is the most active filer in F42D, holding 53 of the 887 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 F42D
Rank Company Patents in F42D
#1 Detnet South Africa (pty) Ltd 53
#2 Geodynamics, Inc. 36
#3 Dynaenergetics Europe Gmbh 33
#4 Hunting Titan, Inc. 33
#5 Hanwha Corporation 27
#6 Orica International Pte Ltd 19
#7 Dyno Nobel Inc. 19
#8 Dynaenergetics Gmbh & Co. KG 16
#9 Austin Star Detonator Company 11
#10 G&H Diversified Manufacturing Lp 10
#11 LOS Alamos National Security, Llc 9
#12 Xconnect, Llc 9
#13 Owen Oil Tools Lp 7
#14 Ensign-bickford Aerospace & Defense Company 7
#15 Petram Technologies, Inc. 7
#16 Matrix X, Llc 7
#17 Otto Torpedo Company 7
#18 SWM International, Llc 6
#19 Orica Explosives Technology PTY Ltd 6
#20 Davey Bickford 6

About This Class

CPC subclass F42D belongs to class F42.

887 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 F42D 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 F42D assignees by class footprint. Bubble size = patents in F42D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 F42D assignees by class footprint. Bubble size = patents in F42D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 0204060 Patents in F42D Avg claims / patent (company-wide) Detnet South Africa (…GeodynamicsDynaenergetics EuropeHunting TitanHanwhaOrica International P…Dyno NobelDynaenergetics & KgAustin Star DetonatorG&H Diversified Manuf…Los Alamos National S…XconnectOwen Oil ToolsEnsign-bickford Aeros…
Top 14 F42D assignees by class footprint. Bubble size = patents in F42D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class F42D?
CPC subclass F42D covers BLASTING. It belongs to CPC class F42 (AMMUNITION; BLASTING), with 887 US utility patents granted since 2015.
How many patents have been filed in F42D?
887 US utility patents were granted in CPC subclass F42D between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in F42D?
Detnet South Africa (pty) Ltd leads F42D with 53 patents, making it the most active assignee in this technology area.
How is patent data for F42D 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., F42) is a broad technology category. Subclasses like F42D 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.