CPC technology class · B02

B02C - Crushing

Crushing, pulverising, or disintegrating in general; milling grain. 2,934 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

2,934
US patents granted: #1/2
in B02: 97.5%
B02 class share: +9%
5-yr velocity

The verdict

According to USPTO PatentsView, Crushing ranks #322 of 670 CPC technology areas - 2,934 US patents granted since 2015, with recorded grant volume up 9% over five years.

#322
of 670 CPC technology areas: 2,934
US patents granted, 2015–2025: Sandvik Intellectual…
leading assignee (65): +9%
grant velocity, last 5 yrs

How B02C's grant cadence moved

Between 2020–2024, B02C recorded 1,388 grants versus 1,269 in 2015–2019 (+9% equal-window velocity). Across complete years, output peaked in 2020 at 359 grants and bottomed in 2018 at 194 (+85% peak-over-trough). Lead assignee Sandvik Intellectual Property AB holds 2.2% of the class ; the top three share 5.0%.

Leaderboard read

B02C concentration, lead at 2.2%

Sandvik Intellectual Property AB leads this historical grant record at 2.2% of B02C - foreign corporation assignees hold 58% of class grants (838 of 1,448). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 2.2%
Top three share: 5.0%
Lead over #2: 16

Where B02C sits inside B02

Among 2 subclasses in B02 (Crushing, Pulverising, OR DISINTEGRATING; Preparatory Treatment OF Grain FOR Milling), B02C ranks #1 and holds 97.5% of the parent class's 3,008 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

B02B 74

Rising assignees active in B02C

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 Guangdong Brunp Recycling Technology Co., Ltd. 61x 0 → 61 company-wide · 5 in B02C
#2 Hunan Brunp Recycling Technology Co., Ltd. 59x 0 → 59 company-wide · 5 in B02C
#3 Bmic LLC 35x 5 → 176 company-wide · 13 in B02C
#4 Insinkerator LLC 27x 0 → 27 company-wide · 6 in B02C
#5 Metso Outotec USA Inc. 13x 1 → 13 company-wide · 15 in B02C

B02C grants by year, peak 2020 (359)

US utility-patent grants per year in B02C, 2015–2025 - recent five years are up 9% versus 2015–2019.

Sandvik Intellectual…

65
Metso Minerals

49
Vermeer Manufacturing

32
Thyssenkrupp…

26
Kleemann

24
Aurora Office…

23
Bühler

22
Valmet Ab

21
Andritz

20
Flsmidth A/S

20
Erema Engineering…

17
Terex Usa

16

What this shows Sandvik Intellectual… is the most active filer in B02C, holding 65 of the 2,934 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 B02C
Rank	Company	Patents in B02C
#1	Sandvik Intellectual Property AB	65
#2	Metso Minerals, Inc.	49
#3	Vermeer Manufacturing Company	32
#4	Thyssenkrupp Industrial Solutions AG	26
#5	Kleemann GmbH	24
#6	Aurora Office Equipment Co., Ltd. Shanghai	23
#7	Bühler AG	22
#8	Valmet AB	21
#9	Andritz Inc.	20
#10	FLSmidth A/S	20
#11	Erema Engineering Recycling Maschinen UND Anlagen Gesellschaft, M.B.H.	17
#12	Terex USA, LLC	16
#13	Owens Corning Intellectual Capital, LLC	15
#14	NETZCH-Feinmahltechnik GmbH	15
#15	Metso Outotec USA Inc.	15
#16	Outotec (FINLAND) OY	14
#17	Fellowes, Inc.	14
#18	Terex GB Limited	14
#19	Genesis III, Inc.	14
#20	Bmic LLC	13

Footprint here vs. claim strategy

Each dot is a leading B02C 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 B02C assignees by class footprint. Bubble size = patents in B02C. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near B02C's 2,934-grant footprint

Nationwide nearest neighbors for B02C (#322 of 670 by volume ; lead share 2.2%) - not the B02 parent-class siblings above.

Nearest by grant volume

A62C 2,939 F24H 2,950 G05G 2,952 E03C 2,911

Nearest by lead-assignee share

F23G 2.2% C01D 2.3% B65B 2.2% B26D 2.3%

Questions about B02C

Which company holds the most patents in B02C?

Sandvik Intellectual Property AB leads B02C with 65 patents (2.2% of the subclass). By PatentsView assignee type, foreign corporations account for 58% of class grants.

Which B02C assignees grew fastest recently?

Among assignees with ≥5 grants in B02C, Guangdong Brunp Recycling Technology Co., Ltd. shows the highest company-wide grant multiple (61x: 0 grants in 2019–2021 → 61 in 2022–2024) while holding 5 patents in this subclass. Growth is company-wide, not class-only.

How does B02C compare inside parent class B02?

Inside B02 (Crushing, Pulverising, OR DISINTEGRATING; Preparatory Treatment OF Grain FOR Milling), B02C ranks #1 of 2 subclasses by grant volume and holds 97.5% of the parent class total. The largest sibling is B02B (74 grants).

What to do with this data

B02C in context - here's where to go next.

Sandvik Intellectual Property AB leads B02C with 65 grants in this class. See full portfolio
B02C ranks #322 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class B02, the largest sibling subclass is B02B with 74 grants. Explore B02B

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

Methodology - B02C figures are USPTO PatentsView granted-utility totals for this subclass (2,934 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.