CPC technology class · B66

B66F - Hoisting

Hoisting, lifting, hauling or pushing, not otherwise provided for, e.g. devices which apply a lifting or pushing force directly to the surface of a load. 4,001 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

4,001
US patents granted: #1/4
in B66: 31.4%
B66 class share: +51%
5-yr velocity

The verdict

According to USPTO PatentsView, Hoisting ranks #273 of 670 CPC technology areas - 4,001 US patents granted since 2015, with recorded grant volume up 51% over five years.

#273
of 670 CPC technology areas: 4,001
US patents granted, 2015–2025: Crown Equipment
leading assignee (188): +51%
grant velocity, last 5 yrs

How B66F's grant cadence moved

Between 2020–2024, B66F recorded 2,102 grants versus 1,390 in 2015–2019 (+51% equal-window velocity). Across complete years, output peaked in 2024 at 551 grants and bottomed in 2016 at 234 (+135% peak-over-trough). Lead assignee Crown Equipment Corporation holds 4.7% of the class ; the top three share 10.3%.

Leaderboard read

B66F concentration, lead at 4.7%

Crown Equipment Corporation leads this historical grant record at 4.7% of B66F - us corporation assignees hold 55% of class grants (1,247 of 2,272). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 4.7%
Top three share: 10.3%
Lead over #2: 57

Where B66F sits inside B66

Among 4 subclasses in B66 (HOISTING; LIFTING; Hauling), B66F ranks #1 and holds 31.4% of the parent class's 12,745 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

B66B 3,714 B66C 3,676 B66D 1,354

Rising assignees active in B66F

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 · 5 in B66F
#2 HAI Robotics Co., Ltd. 94x 1 → 94 company-wide · 23 in B66F
#3 Workhorse Group Inc. 26x 2 → 52 company-wide · 17 in B66F
#4 Beijing Jingdong Qianshi Technology Co., Ltd. 16x 4 → 62 company-wide · 5 in B66F
#5 Shanghai Dianba NEW Energy Technology Co., Ltd. 15x 2 → 30 company-wide · 5 in B66F

B66F grants by year, peak 2024 (551)

US utility-patent grants per year in B66F, 2015–2025 - recent five years are up 51% versus 2015–2019.

Crown Equipment

188
Oshkosh

131
Jungheinrich

94
Toyota Jidoshokki

85
The Raymond

67
Altec Industries

56
Autostore Technology…

55
Hyster-yale Group

46
Cascade

39
Mitsubishi Logisnext

33
Vehicle Service Group

33
Manitou Italia S R L

32

What this shows Crown Equipment is the most active filer in B66F, holding 188 of the 4,001 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 B66F
Rank	Company	Patents in B66F
#1	Crown Equipment Corporation	188
#2	Oshkosh Corporation	131
#3	Jungheinrich AG	94
#4	Kabushiki Kaisha Toyota Jidoshokki	85
#5	The Raymond Corporation	67
#6	Altec Industries, Inc.	56
#7	AutoStore Technology AS	55
#8	Hyster-Yale Group, Inc.	46
#9	Cascade Corporation	39
#10	Mitsubishi Logisnext Co., Ltd.	33
#11	Vehicle Service Group, LLC	33
#12	Manitou Italia S.R.L.	32
#13	Daifuku Co., Ltd.	28
#14	Gray Manufacturing Company, Inc.	27
#15	Murata Machinery, Ltd.	26
#16	JLG Industries, Inc.	26
#17	Haulotte Group	24
#18	HAI Robotics Co., Ltd.	23
#19	Beijing Geekplus Technology Co., Ltd.	21
#20	Hubtex Maschinenbau GMBH & Co. KG	20

Footprint here vs. claim strategy

Each dot is a leading B66F 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 B66F assignees by class footprint. Bubble size = patents in B66F. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near B66F's 4,001-grant footprint

Nationwide nearest neighbors for B66F (#273 of 670 by volume ; lead share 4.7%) - not the B66 parent-class siblings above.

Nearest by grant volume

B06B 4,009 F41A 3,993 H05H 3,951 D21H 4,080

Nearest by lead-assignee share

B44C 4.7% F17D 4.7% B41M 4.7% B25B 4.7%

Questions about B66F

Which company holds the most patents in B66F?

Crown Equipment Corporation leads B66F with 188 patents (4.7% of the subclass). By PatentsView assignee type, us corporations account for 55% of class grants.

Which B66F assignees grew fastest recently?

Among assignees with ≥5 grants in B66F, Berkshire Grey Operating Company, Inc. shows the highest company-wide grant multiple (124x: 0 grants in 2019–2021 → 124 in 2022–2024) while holding 5 patents in this subclass. Growth is company-wide, not class-only.

How does B66F compare inside parent class B66?

Inside B66 (HOISTING; LIFTING; Hauling), B66F ranks #1 of 4 subclasses by grant volume and holds 31.4% of the parent class total. The largest sibling is B66B (3,714 grants).

What to do with this data

B66F in context - here's where to go next.

Crown Equipment Corporation leads B66F with 188 grants in this class. See full portfolio
B66F ranks #273 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class B66, the largest sibling subclass is B66B with 3,714 grants. Explore B66B

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

Methodology - B66F figures are USPTO PatentsView granted-utility totals for this subclass (4,001 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.