PlainPatent

CPC technology class · B22

B22C - Foundry Moulding

Foundry moulding. 1,672 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

1,672
US patents granted
B22
Parent CPC class
20
Active assignees
+12%
5-yr velocity

The verdict

Foundry Moulding ranks #389 of 670 CPC technology areas - 1,672 US patents granted since 2015, with filing up 12% over five years.

#389
of 670 CPC technology areas
1,672
US patents granted, 2015–2025
United
leading assignee (121)
+12%
filing velocity, last 5 yrs
Top assignee: United Technologies Corporation (121 patents)

CPC subclass B22C - FOUNDRY MOULDING - covers 1,672 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class B22 (CASTING; POWDER METALLURGY). See our CPC classification guide for how the system works.

The competitive landscape in B22C is shaped by 20 distinct companies actively filing in this space. United Technologies Corporation leads with 121 patents, followed by Raytheon Technologies Corporation at 73 grants and Sintokogio, Ltd. at 55.

Filing activity in B22C is up 12% over the past five years versus 2015-2019, a relatively steady filing pace. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is B22C innovation accelerating?

US utility-patent grants per year in B22C, 2015–2025 - recent five years are up 12% versus 2015–2019.

50100150200250 20152016201720182019202020212022202320242025 79

Who leads B22C?

The 12 most active assignees in FOUNDRY MOULDING - wider bars mean more grants

patents

What this shows United is the most active filer in B22C, holding 121 of the 1,672 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 B22C
Rank Company Patents in B22C
#1 United Technologies Corporation 121
#2 Raytheon Technologies Corporation 73
#3 Sintokogio, Ltd. 55
#4 Safran Aircraft Engines 49
#5 ASK Chemicals Gmbh 30
#6 Citic Dicastal Co., Ltd. 28
#7 Safran 28
#8 Hüttenes-albertus Chemische Werke Gesellschaft MIT Beschränkter Haftung 17
#9 Mikro Systems, Inc. 14
#10 Nemak, S.a.b. De C.v. 12
#11 Foseco International Limited 12
#12 Taylor Made Golf Company, Inc. 11
#13 DISA Industries A/s 9
#14 Nevis Industries Llc 8
#15 Pennsy Corporation 8
#16 ATI Properties Llc 7
#17 Chromalloy Gas Turbine Llc 7
#18 TBS Engineering Limited 7
#19 Bedloe Industries Llc 7
#20 Chemex Foundry Solutions Gmbh 7

About This Class

CPC subclass B22C belongs to class B22.

1,672 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 B22C 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 B22C assignees by class footprint. Bubble size = patents in B22C. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 B22C assignees by class footprint. Bubble size = patents in B22C. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 05101520 050100150 Patents in B22C Avg claims / patent (company-wide) UnitedRaytheonSintokogioSafran Aircraft Engin…Ask ChemicalsCitic DicastalSafranHÜTtenes-albertus Che…Mikro SystemsNemak B de C VFoseco InternationalTaylor Made GolfDisa Industries A/SNevis Industries
Top 14 B22C assignees by class footprint. Bubble size = patents in B22C. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class B22C?
CPC subclass B22C covers FOUNDRY MOULDING. It belongs to CPC class B22 (CASTING; POWDER METALLURGY), with 1,672 US utility patents granted since 2015.
How many patents have been filed in B22C?
1,672 US utility patents were granted in CPC subclass B22C between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in B22C?
United Technologies Corporation leads B22C with 121 patents, making it the most active assignee in this technology area.
How is patent data for B22C 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., B22) is a broad technology category. Subclasses like B22C 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.