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 filing trajectory.

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

321
US patents granted: F03
Parent CPC class: 20
Active assignees: +76%
5-yr velocity

The verdict

Producing A Reactive Propulsive Thrust ranks #577 of 670 CPC technology areas - 321 US patents granted since 2015, with filing up 76% over five years.

#577
of 670 CPC technology areas: 321
US patents granted, 2015–2025: The Boeing
leading assignee (13): +76%
filing velocity, last 5 yrs

Top assignee: The Boeing Company (13 patents)

CPC subclass F03H - PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR - covers 321 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class F03 (MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR). See our CPC classification guide for how the system works.

The competitive landscape in F03H is shaped by 20 distinct companies actively filing in this space. The Boeing Company leads with 13 patents, followed by Accion Systems, Inc. at 9 grants and Aerojet Rocketdyne, Inc. at 7.

Filing activity in F03H is up 76% 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 F03H innovation accelerating?

US utility-patent grants per year in F03H, 2015–2025 - recent five years are up 76% 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

About This Class

CPC subclass F03H belongs to class F03.

321 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 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).

Frequently Asked Questions

What is CPC class F03H?

CPC subclass F03H covers PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR. It belongs to CPC class F03 (MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR), with 321 US utility patents granted since 2015.

How many patents have been filed in F03H?

321 US utility patents were granted in CPC subclass F03H between 2015 and 2025, based on USPTO PatentsView data.

Which company holds the most patents in F03H?

The Boeing Company leads F03H with 13 patents, making it the most active assignee in this technology area.

How is patent data for F03H 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., F03) is a broad technology category. Subclasses like F03H 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.