CPC technology class · F03

F03H - Producing A Reactive Propulsive Thrust

Producing a reactive propulsive thrust, not otherwise provided for. 321 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

321
US patents granted: #5/5
in F03: 2.7%
F03 class share: +51%
5-yr velocity

The verdict

According to USPTO PatentsView, Producing A Reactive Propulsive Thrust ranks #578 of 670 CPC technology areas - 321 US patents granted since 2015, with recorded grant volume up 51% over five years.

#578
of 670 CPC technology areas: 321
US patents granted, 2015–2025: The Boeing
leading assignee (13): +51%
grant velocity, last 5 yrs

How F03H's grant cadence moved

Between 2020–2024, F03H recorded 162 grants versus 107 in 2015–2019 (+51% equal-window velocity). Across complete years, output peaked in 2024 at 41 grants and bottomed in 2017 at 17 (+141% peak-over-trough). Lead assignee The George Washington University holds 2.8% of the class ; the top three share 7.8%.

Leaderboard read

F03H concentration, lead at 2.8%

The George Washington University leads this historical grant record at 2.8% of F03H - us corporation assignees hold 78% of class grants (69 of 88). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 2.8%
Top three share: 7.8%
Lead over #2: 0

Where F03H sits inside F03

Among 5 subclasses in F03 (Machines OR Engines FOR LIQUIDS; Wind, Spring, OR Weight MOTORS; Producing Mechanical Power OR A Reactive Propulsive Thrust, NOT Otherwise Provided FOR), F03H ranks #5 and holds 2.7% of the parent class's 11,891 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

F03D 7,370 F03G 2,252 F03B 1,544 F03C 404

Rising assignees active in F03H

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 Trans Astronautica Corporation 4.00x 3 → 12 company-wide · 5 in F03H
#2 Accion Systems, Inc. 2.50x 2 → 5 company-wide · 9 in F03H
#3 The George Washington University 1.13x 45 → 51 company-wide · 9 in F03H
#4 Ecole Polytechnique 0.80x 15 → 12 company-wide · 5 in F03H
#5 CU Aerospace, LLC 0.60x 5 → 3 company-wide · 5 in F03H

F03H grants by year, peak 2024 (41)

US utility-patent grants per year in F03H, 2015–2025 - recent five years are up 51% versus 2015–2019.

The George Washington…

9
Accion Systems

9
Aerojet Rocketdyne

7
Game Changers

6
Ecole Polytechnique

5
Trans Astronautica

5
Cu Aerospace

5
Space Systems/Loral

4
Momentus Space

4
Astrium

3
Pipl

3
Electric Sky Holdings

3

What this shows The Boeing is the most active filer in F03H, holding 13 of the 321 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 F03H
Rank	Company	Patents in F03H
#1	The George Washington University	9
#2	Accion Systems, Inc.	9
#3	Aerojet Rocketdyne, Inc.	7
#4	Game Changers, LLC	6
#5	Ecole Polytechnique	5
#6	Trans Astronautica Corporation	5
#7	CU Aerospace, LLC	5
#8	Space Systems/Loral, LLC	4
#9	Momentus Space LLC	4
#10	Astrium GMBH	3
#11	Pipl Limited	3
#12	Electric Sky Holdings, Inc.	3
#13	Princeton Satellite Systems, Inc.	3
#14	Hefei Institutes of Physical Sciences, Chinese Academy of Sciences	2
#15	Tesat-Spacecom GmbH & Co. KG	2
#16	Astrium SAS	2
#17	Skeyeon, Inc.	2
#18	PerriQuest Defense Research Enterprises, LLC	2
#19	Nano-Product Engineering, LLC	2
#20	Msnw LLC	2

Footprint here vs. claim strategy

Each dot is a leading F03H 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 F03H assignees by class footprint. Bubble size = patents in F03H. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Questions about F03H

Which company holds the most patents in F03H?

The Boeing Company leads F03H with 13 patents (2.8% of the subclass). By PatentsView assignee type, us corporations account for 78% of class grants.

Which F03H assignees grew fastest recently?

Among assignees with ≥5 grants in F03H, Trans Astronautica Corporation shows the highest company-wide grant multiple (4.00x: 3 grants in 2019–2021 → 12 in 2022–2024) while holding 5 patents in this subclass. Growth is company-wide, not class-only.

How does F03H compare inside parent class F03?

Inside F03 (Machines OR Engines FOR LIQUIDS; Wind, Spring, OR Weight MOTORS; Producing Mechanical Power OR A Reactive Propulsive Thrust, NOT Otherwise Provided FOR), F03H ranks #5 of 5 subclasses by grant volume and holds 2.7% of the parent class total. The largest sibling is F03D (7,370 grants).

What to do with this data

F03H in context - here's where to go next.

The George Washington University leads F03H with 9 grants in this class. See full portfolio
F03H ranks #578 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class F03, the largest sibling subclass is F03D with 7,370 grants. Explore F03D

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

Methodology - F03H figures are USPTO PatentsView granted-utility totals for this subclass (321 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.