PlainPatent

CPC technology class · G01

G01P - Measuring Linear OR Angular Speed

Measuring linear or angular speed, acceleration, deceleration, or shock; indicating presence, absence, or direction, of movement. 7,932 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

7,932
US patents granted
G01
Parent CPC class
20
Active assignees
+30%
5-yr velocity

The verdict

Measuring Linear OR Angular Speed ranks #194 of 670 CPC technology areas - 7,932 US patents granted since 2015, with filing up 30% over five years.

#194
of 670 CPC technology areas
7,932
US patents granted, 2015–2025
Seiko Epson
leading assignee (309)
+30%
filing velocity, last 5 yrs
Top assignee: Seiko Epson Corporation (309 patents)

CPC subclass G01P - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT - covers 7,932 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class G01 (MEASURING; TESTING). See our CPC classification guide for how the system works.

The competitive landscape in G01P is shaped by 20 distinct companies actively filing in this space. Seiko Epson Corporation leads with 309 patents, followed by Rosemount Aerospace Inc. at 151 grants and Invensense, Inc. at 92.

Filing activity in G01P is up 30% 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 G01P innovation accelerating?

US utility-patent grants per year in G01P, 2015–2025 - recent five years are up 30% versus 2015–2019.

400500600700800900 20152016201720182019202020212022202320242025 464

Who leads G01P?

The 12 most active assignees in MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT - wider bars mean more grants

patents

What this shows Seiko Epson is the most active filer in G01P, holding 309 of the 7,932 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 G01P
Rank Company Patents in G01P
#1 Seiko Epson Corporation 309
#2 Rosemount Aerospace Inc. 151
#3 Invensense, Inc. 92
#4 Aktiebolaget SKF 57
#5 Allegro Microsystems, Llc 56
#6 Analog Devices, Inc. 54
#7 Fitbit, Llc 45
#8 Thales 44
#9 SZ DJI Technology Co., Ltd. 35
#10 May Patents Ltd. 33
#11 Continental Teves Ag & Co. OHG 29
#12 Freeescale Semiconductor, Inc. 28
#13 Continental Automotive France 26
#14 Ouraring Inc. 26
#15 Allstate Insurance Company 22
#16 Mcube, Inc. 21
#17 Keep Technologies, Inc. 21
#18 Stmicroelectronics, Inc. 20
#19 Blast Motion Inc. 20
#20 Atlantic Inertial Systems Limited 20

About This Class

CPC subclass G01P belongs to class G01.

7,932 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 G01P 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 G01P assignees by class footprint. Bubble size = patents in G01P. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 G01P assignees by class footprint. Bubble size = patents in G01P. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 01020304050 0100200300400 Patents in G01P Avg claims / patent (company-wide) Seiko EpsonRosemount AerospaceInvensenseAktiebolaget SkfAllegro MicrosystemsAnalog DevicesFitbitThalesSz Dji TechnologyMay PatentsContinental Teves & O…Freeescale Semiconduc…Continental Automotiv…Ouraring
Top 14 G01P assignees by class footprint. Bubble size = patents in G01P. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class G01P?
CPC subclass G01P covers MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT. It belongs to CPC class G01 (MEASURING; TESTING), with 7,932 US utility patents granted since 2015.
How many patents have been filed in G01P?
7,932 US utility patents were granted in CPC subclass G01P between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in G01P?
Seiko Epson Corporation leads G01P with 309 patents, making it the most active assignee in this technology area.
How is patent data for G01P 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., G01) is a broad technology category. Subclasses like G01P 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.