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 grant trajectory.

Compiled by PlainPatent · May 15, 2026

7,932
US patents granted: #13/18
in G01: 2.0%
G01 class share: +16%
5-yr velocity

The verdict

According to USPTO PatentsView, Measuring Linear Or Angular Speed ranks #194 of 670 CPC technology areas - 7,932 US patents granted since 2015, with recorded grant volume up 16% over five years.

#194
of 670 CPC technology areas: 7,932
US patents granted, 2015–2025: Seiko Epson
leading assignee (309): +16%
grant velocity, last 5 yrs

How G01P's grant cadence moved

Between 2020–2024, G01P recorded 3,860 grants versus 3,322 in 2015–2019 (+16% equal-window velocity). Across complete years, output peaked in 2019 at 832 grants and bottomed in 2015 at 523 (+59% peak-over-trough). Lead assignee Seiko Epson Corporation holds 3.9% of the class ; the top three share 7.0%.

Leaderboard read

G01P concentration, lead at 3.9%

Seiko Epson Corporation leads this historical grant record at 3.9% of G01P - foreign corporation assignees hold 51% of class grants (1,372 of 2,706). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 3.9%
Top three share: 7.0%
Lead over #2: 158

Where G01P sits inside G01

Among 18 subclasses in G01 (MEASURING; Testing), G01P ranks #13 and holds 2.0% of the parent class's 393,430 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

G01N 115,972 G01R 53,716 G01S 52,756 G01C 32,360 G01B 22,043 G01J 16,402 G01M 14,845 G01V 14,307

Rising assignees active in G01P

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 Archer Aviation Inc. 44x 0 → 44 company-wide · 6 in G01P
#2 Project Canary, PBC 16x 2 → 31 company-wide · 7 in G01P
#3 Ouraring Inc. 14x 0 → 14 company-wide · 26 in G01P
#4 Sword Health, S.A. 12x 0 → 12 company-wide · 6 in G01P
#5 AirFlow Direction, Inc. 11x 0 → 11 company-wide · 9 in G01P

G01P grants by year, peak 2019 (832)

US utility-patent grants per year in G01P, 2015–2025 - recent five years are up 16% versus 2015–2019.

Seiko Epson

309
Rosemount Aerospace

151
Invensense

92
Aktiebolaget Skf

57
Allegro Microsystems

56
Analog Devices

54
Fitbit

45
Thales

44
Sz Dji Technology

35
May Patents

33
Continental Teves &…

29
Freeescale Semiconduct…

28

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.

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

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).

Classes near G01P's 7,932-grant footprint

Nationwide nearest neighbors for G01P (#194 of 670 by volume ; lead share 3.9%) - not the G01 parent-class siblings above.

Nearest by grant volume

H04S 7,918 A47B 7,915 E04B 7,959 B60H 7,970

Nearest by lead-assignee share

F41C 3.9% B60G 3.9% G05B 3.9% E01H 3.9%

Questions about G01P

Which company holds the most patents in G01P?

Seiko Epson Corporation leads G01P with 309 patents (3.9% of the subclass). By PatentsView assignee type, foreign corporations account for 51% of class grants.

Which G01P assignees grew fastest recently?

Among assignees with ≥5 grants in G01P, Archer Aviation Inc. shows the highest company-wide grant multiple (44x: 0 grants in 2019–2021 → 44 in 2022–2024) while holding 6 patents in this subclass. Growth is company-wide, not class-only.

How does G01P compare inside parent class G01?

Inside G01 (MEASURING; Testing), G01P ranks #13 of 18 subclasses by grant volume and holds 2.0% of the parent class total. The largest sibling is G01N (115,972 grants).

What to do with this data

G01P in context - here's where to go next.

Seiko Epson Corporation leads G01P with 309 grants in this class. See full portfolio
G01P ranks #194 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class G01, the largest sibling subclass is G01N with 115,972 grants. Explore G01N

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

Methodology - G01P figures are USPTO PatentsView granted-utility totals for this subclass (7,932 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.