CPC technology class · F42

F42D - Blasting

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

Compiled by PlainPatent · May 15, 2026

887
US patents granted: #3/3
in F42: 15.9%
F42 class share: +16%
5-yr velocity

The verdict

According to USPTO PatentsView, Blasting ranks #473 of 670 CPC technology areas - 887 US patents granted since 2015, with recorded grant volume up 16% over five years.

#473
of 670 CPC technology areas: 887
US patents granted, 2015–2025: Detnet South Africa (Pty)
leading assignee (53): +16%
grant velocity, last 5 yrs

How F42D's grant cadence moved

Between 2020–2024, F42D recorded 421 grants versus 364 in 2015–2019 (+16% equal-window velocity). Across complete years, output peaked in 2024 at 103 grants and bottomed in 2018 at 59 (+75% peak-over-trough). Lead assignee Detnet South Africa (PTY) Ltd holds 6.0% of the class ; the top three share 13.8%.

Leaderboard read

F42D concentration, lead at 6.0%

Detnet South Africa (PTY) Ltd leads this historical grant record at 6.0% of F42D - us corporation assignees hold 51% of class grants (230 of 453). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 6.0%
Top three share: 13.8%
Lead over #2: 17

Where F42D sits inside F42

Among 3 subclasses in F42 (AMMUNITION; Blasting), F42D ranks #3 and holds 15.9% of the parent class's 5,576 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

F42B 3,745 F42C 944

Rising assignees active in F42D

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 XConnect, LLC 17x 1 → 17 company-wide · 9 in F42D
#2 Corvid Technologies LLC 11x 1 → 11 company-wide · 5 in F42D
#3 Hanwha Corporation 6.25x 4 → 25 company-wide · 27 in F42D
#4 DynaEnergetics Europe GmbH 2.19x 37 → 81 company-wide · 33 in F42D
#5 Hunting Titan, Inc. 2.00x 24 → 48 company-wide · 33 in F42D

F42D grants by year, peak 2024 (103)

US utility-patent grants per year in F42D, 2015–2025 - recent five years are up 16% versus 2015–2019.

Detnet South Africa…

53
Geodynamics

36
Dynaenergetics Europe

33
Hunting Titan

33
Hanwha

27
Orica International…

19
Dyno Nobel

19
Dynaenergetics & Kg

16
Austin Star Detonator

11
G&H Diversified…

10
Los Alamos National…

9
Xconnect

9

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.

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

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).

Classes near F42D's 887-grant footprint

Nationwide nearest neighbors for F42D (#473 of 670 by volume ; lead share 6.0%) - not the F42 parent-class siblings above.

Nearest by grant volume

A61D 885 B62L 885 D07B 899 B04C 873

Nearest by lead-assignee share

B62D 5.9% E01B 5.9% B03D 5.9% B31B 5.9%

Questions about F42D

Which company holds the most patents in F42D?

Detnet South Africa (PTY) Ltd leads F42D with 53 patents (6.0% of the subclass). By PatentsView assignee type, us corporations account for 51% of class grants.

Which F42D assignees grew fastest recently?

Among assignees with ≥5 grants in F42D, XConnect, LLC shows the highest company-wide grant multiple (17x: 1 grants in 2019–2021 → 17 in 2022–2024) while holding 9 patents in this subclass. Growth is company-wide, not class-only.

How does F42D compare inside parent class F42?

Inside F42 (AMMUNITION; Blasting), F42D ranks #3 of 3 subclasses by grant volume and holds 15.9% of the parent class total. The largest sibling is F42B (3,745 grants).

What to do with this data

F42D in context - here's where to go next.

Detnet South Africa (PTY) Ltd leads F42D with 53 grants in this class. See full portfolio
F42D ranks #473 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class F42, the largest sibling subclass is F42B with 3,745 grants. Explore F42B

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

Methodology - F42D figures are USPTO PatentsView granted-utility totals for this subclass (887 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.