CPC technology class · B22

B22F - Working Metallic Powder

Working metallic powder; manufacture of articles from metallic powder; making metallic powder ; apparatus or devices specially adapted for metallic powder. 13,344 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

13,344
US patents granted: #1/3
in B22: 68.6%
B22 class share: +82%
5-yr velocity

The verdict

According to USPTO PatentsView, Working Metallic Powder ranks #142 of 670 CPC technology areas - 13,344 US patents granted since 2015, with recorded grant volume up 82% over five years.

#142
of 670 CPC technology areas: 13,344
US patents granted, 2015–2025: General Electric
leading assignee (639): +82%
grant velocity, last 5 yrs

How B22F's grant cadence moved

Between 2020–2024, B22F recorded 7,429 grants versus 4,073 in 2015–2019 (+82% equal-window velocity). Across complete years, output peaked in 2024 at 1,568 grants and bottomed in 2015 at 587 (+167% peak-over-trough). Lead assignee General Electric Company holds 4.8% of the class ; the top three share 8.1%.

Leaderboard read

B22F concentration, lead at 4.8%

General Electric Company leads this historical grant record at 4.8% of B22F - us corporation assignees hold 51% of class grants (3,805 of 7,406). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 4.8%
Top three share: 8.1%
Lead over #2: 367

Where B22F sits inside B22

Among 3 subclasses in B22 (CASTING; Powder Metallurgy), B22F ranks #1 and holds 68.6% of the parent class's 19,441 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

B22D 4,425 B22C 1,672

Rising assignees active in B22F

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 RTX Corporation 662x 0 → 662 company-wide · 39 in B22F
#2 Topgolf Callaway Brands Corp. 144x 0 → 144 company-wide · 12 in B22F
#3 Proterial, Ltd. 139x 0 → 139 company-wide · 22 in B22F
#4 GE Infrastructure Technology LLC 80x 2 → 160 company-wide · 20 in B22F
#5 Collins Engine Nozzles, Inc. 74x 0 → 74 company-wide · 11 in B22F

B22F grants by year, peak 2024 (1,568)

US utility-patent grants per year in B22F, 2015–2025 - recent five years are up 82% versus 2015–2019.

General Electric

639
Hewlett-packard…

272
United

169
Concept Laser

152
Raytheon

127
Baker Hughes Holdings

113
Tdk

106
Arcam Ab

106
Us Synthetic

90
Desktop Metal

89
Eos Electro Optical…

87
Divergent

83

What this shows General Electric is the most active filer in B22F, holding 639 of the 13,344 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 B22F
Rank	Company	Patents in B22F
#1	General Electric Company	639
#2	Hewlett-packard Development Company, L.P.	272
#3	United Technologies Corporation	169
#4	Concept Laser, GmbH	152
#5	Raytheon Technologies Corporation	127
#6	Baker Hughes Holdings LLC	113
#7	TDK Corporation	106
#8	Arcam AB	106
#9	US Synthetic Corporation	90
#10	Desktop Metal, Inc.	89
#11	EOS GmbH Electro Optical Systems	87
#12	Divergent Technologies, Inc.	83
#13	Rolls-royce plc	69
#14	MTU Aero Engines AG	68
#15	Dowa Electronics Materials Co., Ltd.	67
#16	Mitsubishi Materials Corporation	64
#17	True Velocity IP Holdings, Inc.	61
#18	Sodick Co., Ltd.	60
#19	Rolls-Royce Corporation	57
#20	Siemens Energy Global GmbH & Co. KG	57

Footprint here vs. claim strategy

Each dot is a leading B22F 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 B22F assignees by class footprint. Bubble size = patents in B22F. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near B22F's 13,344-grant footprint

Nationwide nearest neighbors for B22F (#142 of 670 by volume ; lead share 4.8%) - not the B22 parent-class siblings above.

Nearest by grant volume

B60N 13,335 B60Q 13,530 A01N 13,786 G01L 12,902

Nearest by lead-assignee share

F04C 4.8% F16D 4.8% F16H 4.8% G16C 4.8%

Questions about B22F

Which company holds the most patents in B22F?

General Electric Company leads B22F with 639 patents (4.8% of the subclass). By PatentsView assignee type, us corporations account for 51% of class grants.

Which B22F assignees grew fastest recently?

Among assignees with ≥5 grants in B22F, RTX Corporation shows the highest company-wide grant multiple (662x: 0 grants in 2019–2021 → 662 in 2022–2024) while holding 39 patents in this subclass. Growth is company-wide, not class-only.

How does B22F compare inside parent class B22?

Inside B22 (CASTING; Powder Metallurgy), B22F ranks #1 of 3 subclasses by grant volume and holds 68.6% of the parent class total. The largest sibling is B22D (4,425 grants).

What to do with this data

B22F in context - here's where to go next.

General Electric Company leads B22F with 639 grants in this class. See full portfolio
B22F ranks #142 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class B22, the largest sibling subclass is B22D with 4,425 grants. Explore B22D

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

Methodology - B22F figures are USPTO PatentsView granted-utility totals for this subclass (13,344 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.