PlainPatent

CPC technology class · B23

B23D - Planing

Planing; slotting; shearing; broaching; sawing; filing; scraping; like operations for working metal by removing material, not otherwise provided for. 2,856 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

2,856
US patents granted
B23
Parent CPC class
20
Active assignees
+8%
5-yr velocity

The verdict

Planing ranks #325 of 670 CPC technology areas - 2,856 US patents granted since 2015, with filing up 8% over five years.

#325
of 670 CPC technology areas
2,856
US patents granted, 2015–2025
Robert Bosch
leading assignee (212)
+8%
filing velocity, last 5 yrs
Top assignee: Robert Bosch Gmbh (212 patents)

CPC subclass B23D - PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR - covers 2,856 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class B23 (MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR). See our CPC classification guide for how the system works.

The competitive landscape in B23D is shaped by 20 distinct companies actively filing in this space. Robert Bosch Gmbh leads with 212 patents, followed by Makita Corporation at 135 grants and Black & Decker Inc. at 110.

Filing activity in B23D is up 8% 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 B23D innovation accelerating?

US utility-patent grants per year in B23D, 2015–2025 - recent five years are up 8% versus 2015–2019.

150200250300350 20152016201720182019202020212022202320242025 165

Who leads B23D?

The 12 most active assignees in PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR - wider bars mean more grants

patents

What this shows Robert Bosch is the most active filer in B23D, holding 212 of the 2,856 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 B23D
Rank Company Patents in B23D
#1 Milwaukee Electric Tool Corporation 158
#2 Makita Corporation 135
#3 Black & Decker Inc. 110
#4 Robert Bosch Tool Corporation 107
#5 Husqvarna AB 66
#6 Andreas Stihl Ag & Co. KG 38
#7 Kennametal Inc. 34
#8 Sawstop Holding Llc 34
#9 Koki Holdings Co., Ltd. 29
#10 Nanjing Chervon Industry Co., Ltd. 28
#11 Festool Gmbh 24
#12 Rexon Industrial Corp., Ltd. 24
#13 Saint-gobain Abrasives, Inc. 19
#14 Saint-gobain Abrasifs 19
#15 Irwin Industrial Tool Company 18
#16 Sumitomo Electric Hardmetal Corp. 17
#17 C. & E. FEIN Gmbh 17
#18 TTI (macao Commercial Offshore) Limited 15
#19 Hitachi Koki Co., Ltd. 15
#20 Amada Co., Ltd. 15

About This Class

CPC subclass B23D belongs to class B23.

2,856 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 B23D 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 B23D assignees by class footprint. Bubble size = patents in B23D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 B23D assignees by class footprint. Bubble size = patents in B23D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 5101520 050100150200 Patents in B23D Avg claims / patent (company-wide) Milwaukee Electric To…MakitaBlack & DeckerRobert Bosch ToolHusqvarna AbAndreas Stihl & KgKennametalSawstop HoldingKoki HoldingsNanjing Chervon Indus…FestoolRexon IndustrialSaint-gobain AbrasivesSaint-gobain Abrasifs
Top 14 B23D assignees by class footprint. Bubble size = patents in B23D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class B23D?
CPC subclass B23D covers PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR. It belongs to CPC class B23 (MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR), with 2,856 US utility patents granted since 2015.
How many patents have been filed in B23D?
2,856 US utility patents were granted in CPC subclass B23D between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in B23D?
Robert Bosch Gmbh leads B23D with 212 patents, making it the most active assignee in this technology area.
How is patent data for B23D 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., B23) is a broad technology category. Subclasses like B23D 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.