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CPC technology class · G21

G21J - Nuclear Explosives

Nuclear explosives; applications thereof. 5 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

5
US patents granted
#8/8
in G21
0.1%
G21 class share
+100%
5-yr velocity

The verdict

According to USPTO PatentsView, Nuclear Explosives ranks #670 of 670 CPC technology areas - 5 US patents granted since 2015, with recorded grant volume up 100% over five years.

#670
of 670 CPC technology areas
5
US patents granted, 2015–2025
Texas Instruments…
leading assignee (1)
+100%
grant velocity, last 5 yrs

How tightly G21J concentrates

Faraday Defense Corporation holds 20.0% of G21J's recorded grants (1 of 5) . Equal-window velocity 2020–2024 vs 2015–2019: +100% (2 vs 1 grants).

Leaderboard read

G21J concentration, lead at 20.0%

Faraday Defense Corporation leads this historical grant record at 20.0% of G21J - us corporation assignees hold 100% of class grants (1 of 1). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
20.0%

1 of 5 grants

Top three share
N/A

of the class's recorded grants

Lead over #2
N/A

runner-up unavailable

Where G21J sits inside G21

Among 8 subclasses in G21 (Nuclear PHYSICS; Nuclear Engineering), G21J ranks #8 and holds 0.1% of the parent class's 8,981 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

G21K 3,019 G21C 2,434 G21F 1,599 G21D 744 G21G 629 G21B 372 G21H 179

G21J grants by year, peak 2017 (1)

US utility-patent grants per year in G21J, 2015–2025 - recent five years are up 100% versus 2015–2019.

0.511.522.5 2017202020222025 2

Who leads G21J?

The 12 most active assignees in Nuclear EXPLOSIVES; Applications Thereof - wider bars mean more grants

patents

What this shows Texas Instruments… is the most active filer in G21J, holding 1 of the 5 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 G21J
Rank Company Patents in G21J
#1 Faraday Defense Corporation 1

Questions about G21J

Which company holds the most patents in G21J?
Texas Instruments Incorporated leads G21J with 1 patents (20.0% of the subclass). By PatentsView assignee type, us corporations account for 100% of class grants.
How does G21J compare inside parent class G21?
Inside G21 (Nuclear PHYSICS; Nuclear Engineering), G21J ranks #8 of 8 subclasses by grant volume and holds 0.1% of the parent class total. The largest sibling is G21K (3,019 grants).

What to do with this data

G21J in context - here's where to go next.

  • Faraday Defense Corporation leads G21J with 1 grants in this class. See full portfolio
  • G21J ranks #670 of 670 by grant volume among all tracked CPC technology areas. See the ranking
  • Inside parent class G21, the largest sibling subclass is G21K with 3,019 grants. Explore G21K

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

Methodology - G21J figures are USPTO PatentsView granted-utility totals for this subclass (5 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.