CPC technology class · B25

B25J - Manipulators

Manipulators; chambers provided with manipulation devices. 21,590 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

21,590
US patents granted: #1/7
in B25: 59.6%
B25 class share: +96%
5-yr velocity

The verdict

According to USPTO PatentsView, Manipulators ranks #95 of 670 CPC technology areas - 21,590 US patents granted since 2015, with recorded grant volume up 96% over five years.

#95
of 670 CPC technology areas: 21,590
US patents granted, 2015–2025: Fanuc
leading assignee (999): +96%
grant velocity, last 5 yrs

How B25J's grant cadence moved

Between 2020–2024, B25J recorded 12,202 grants versus 6,233 in 2015–2019 (+96% equal-window velocity). Across complete years, output peaked in 2024 at 2,858 grants and bottomed in 2015 at 888 (+222% peak-over-trough). Lead assignee Fanuc Corporation holds 4.6% of the class ; the top three share 9.6%.

Leaderboard read

B25J concentration, lead at 4.6%

Fanuc Corporation leads this historical grant record at 4.6% of B25J - foreign corporation assignees hold 59% of class grants (7,419 of 12,499). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 4.6%
Top three share: 9.6%
Lead over #2: 391

Where B25J sits inside B25

Among 7 subclasses in B25 (Hand TOOLS; Portable Power-driven TOOLS; Manipulators), B25J ranks #1 and holds 59.6% of the parent class's 36,206 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

B25B 6,226 B25F 3,594 B25H 1,500 B25D 1,146 B25C 1,109 B25G 1,041

Rising assignees active in B25J

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 Berkshire Grey Operating Company, Inc. 124x 0 → 124 company-wide · 96 in B25J
#2 HAI Robotics Co., Ltd. 94x 1 → 94 company-wide · 25 in B25J
#3 Strong Force TX Portfolio 2018, LLC 91x 0 → 91 company-wide · 5 in B25J
#4 TE Connectivity Solutions GmbH 68x 4 → 271 company-wide · 14 in B25J
#5 Brooks Automation US, LLC 57x 0 → 57 company-wide · 34 in B25J

B25J grants by year, peak 2024 (2,858)

US utility-patent grants per year in B25J, 2015–2025 - recent five years are up 96% versus 2015–2019.

Fanuc

999
Seiko Epson

608
Intuitive Surgical…

470
X Development

351
Kawasaki Jukogyo

328
Yaskawa Denki

215
Abb Schweiz

214
Ubtech Robotics

197
irobot

196
Boston Dynamics

192
Omron

168
Mujin

138

What this shows Fanuc is the most active filer in B25J, holding 999 of the 21,590 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 B25J
Rank	Company	Patents in B25J
#1	Fanuc Corporation	999
#2	Seiko Epson Corporation	608
#3	Intuitive Surgical Operations, Inc.	470
#4	X Development LLC	351
#5	Kawasaki Jukogyo Kabushiki Kaisha	328
#6	Kabushiki Kaisha Yaskawa Denki	215
#7	ABB Schweiz AG	214
#8	Ubtech Robotics Corp Ltd	197
#9	iRobot Corporation	196
#10	Boston Dynamics, Inc.	192
#11	Omron Corporation	168
#12	Mujin, Inc.	138
#13	Verb Surgical Inc.	132
#14	Olympus Corporation	101
#15	Kuka Deutschland GmbH	101
#16	Berkshire Grey Operating Company, Inc.	96
#17	Covidien LP	93
#18	Brain Corporation	86
#19	Intrinsic Innovation LLC	83
#20	Cilag GmbH International	82

Footprint here vs. claim strategy

Each dot is a leading B25J 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 B25J assignees by class footprint. Bubble size = patents in B25J. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near B25J's 21,590-grant footprint

Nationwide nearest neighbors for B25J (#95 of 670 by volume ; lead share 4.6%) - not the B25 parent-class siblings above.

Nearest by grant volume

G03F 21,670 G11B 21,500 H01F 21,711 G03B 21,728

Nearest by lead-assignee share

A45C 4.6% B23K 4.6% C07F 4.6% E05F 4.6%

Questions about B25J

Which company holds the most patents in B25J?

Fanuc Corporation leads B25J with 999 patents (4.6% of the subclass). By PatentsView assignee type, foreign corporations account for 59% of class grants.

Which B25J assignees grew fastest recently?

Among assignees with ≥5 grants in B25J, Berkshire Grey Operating Company, Inc. shows the highest company-wide grant multiple (124x: 0 grants in 2019–2021 → 124 in 2022–2024) while holding 96 patents in this subclass. Growth is company-wide, not class-only.

How does B25J compare inside parent class B25?

Inside B25 (Hand TOOLS; Portable Power-driven TOOLS; Manipulators), B25J ranks #1 of 7 subclasses by grant volume and holds 59.6% of the parent class total. The largest sibling is B25B (6,226 grants).

What to do with this data

B25J in context - here's where to go next.

Fanuc Corporation leads B25J with 999 grants in this class. See full portfolio
B25J ranks #95 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class B25, the largest sibling subclass is B25B with 6,226 grants. Explore B25B

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

Methodology - B25J figures are USPTO PatentsView granted-utility totals for this subclass (21,590 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.