PlainPatent

CPC technology class · B27

B27B - SAWS FOR WOOD OR Similar Material

Saws for wood or similar material; components or accessories therefor. 1,327 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

1,327
US patents granted
B27
Parent CPC class
20
Active assignees
+31%
5-yr velocity

The verdict

SAWS FOR WOOD OR Similar Material ranks #419 of 670 CPC technology areas - 1,327 US patents granted since 2015, with filing up 31% over five years.

#419
of 670 CPC technology areas
1,327
US patents granted, 2015–2025
Robert Bosch
leading assignee (148)
+31%
filing velocity, last 5 yrs
Top assignee: Robert Bosch Gmbh (148 patents)

CPC subclass B27B - SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR - covers 1,327 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class B27 (WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL). See our CPC classification guide for how the system works.

The competitive landscape in B27B is shaped by 20 distinct companies actively filing in this space. Robert Bosch Gmbh leads with 148 patents, followed by Andreas Stihl Ag & Co. KG at 84 grants and Black & Decker Inc. at 62.

Filing activity in B27B is up 31% over the past five years versus 2015-2019, a sharp acceleration suggesting an emerging or fast-moving technology area. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is B27B innovation accelerating?

US utility-patent grants per year in B27B, 2015–2025 - recent five years are up 31% versus 2015–2019.

80100120140160 20152016201720182019202020212022202320242025 95

Who leads B27B?

The 12 most active assignees in SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR - wider bars mean more grants

patents

What this shows Robert Bosch is the most active filer in B27B, holding 148 of the 1,327 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 B27B
Rank Company Patents in B27B
#1 Makita Corporation 104
#2 Andreas Stihl Ag & Co. KG 84
#3 Black & Decker Inc. 62
#4 Robert Bosch Tool Corporation 54
#5 Husqvarna AB 52
#6 USNR, Llc 36
#7 Yamabiko Corporation 22
#8 Sawstop Holding Llc 22
#9 Festool Gmbh 20
#10 Nanjing Chervon Industry Co., Ltd. 19
#11 Techtronic Cordless GP 18
#12 C. & E. FEIN Gmbh 17
#13 Koki Holdings Co., Ltd. 16
#14 Chervon (hk) Limited 15
#15 Rexon Industrial Corp., Ltd. 14
#16 Hitachi Koki Co., Ltd. 12
#17 Kreg Enterprises, Inc. 12
#18 Blount, Inc. 11
#19 Positec Power Tools (suzhou) Co., Ltd. 8
#20 Globe (jiangsu) Co., Ltd. 8

About This Class

CPC subclass B27B belongs to class B27.

1,327 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 B27B 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 B27B assignees by class footprint. Bubble size = patents in B27B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 B27B assignees by class footprint. Bubble size = patents in B27B. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 020406080100120 Patents in B27B Avg claims / patent (company-wide) MakitaAndreas Stihl & KgBlack & DeckerRobert Bosch ToolHusqvarna AbUsnrYamabikoSawstop HoldingFestoolNanjing Chervon Indus…Techtronic Cordless GpC & E FeinKoki HoldingsChervon (Hk)
Top 14 B27B assignees by class footprint. Bubble size = patents in B27B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class B27B?
CPC subclass B27B covers SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR. It belongs to CPC class B27 (WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL), with 1,327 US utility patents granted since 2015.
How many patents have been filed in B27B?
1,327 US utility patents were granted in CPC subclass B27B between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in B27B?
Robert Bosch Gmbh leads B27B with 148 patents, making it the most active assignee in this technology area.
How is patent data for B27B 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., B27) is a broad technology category. Subclasses like B27B 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.