PlainPatent

CPC technology class · G01

G01H - Measurement OF Mechanical Vibrations OR Ultrasonic

Measurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves. 3,605 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

3,605
US patents granted
G01
Parent CPC class
20
Active assignees
+68%
5-yr velocity

The verdict

Measurement OF Mechanical Vibrations OR Ultrasonic ranks #292 of 670 CPC technology areas - 3,605 US patents granted since 2015, with filing up 68% over five years.

#292
of 670 CPC technology areas
3,605
US patents granted, 2015–2025
Nec
leading assignee (130)
+68%
filing velocity, last 5 yrs
Top assignee: NEC Corporation (130 patents)

CPC subclass G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES - covers 3,605 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 G01H is shaped by 20 distinct companies actively filing in this space. NEC Corporation leads with 130 patents, followed by Strong Force Iot Portfolio 2016, Llc at 47 grants and Optasense Holdings Limited at 37.

Filing activity in G01H is up 68% 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 G01H innovation accelerating?

US utility-patent grants per year in G01H, 2015–2025 - recent five years are up 68% versus 2015–2019.

100200300400500 20152016201720182019202020212022202320242025 251

Who leads G01H?

The 12 most active assignees in MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES - wider bars mean more grants

patents

What this shows Nec is the most active filer in G01H, holding 130 of the 3,605 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 G01H
Rank Company Patents in G01H
#1 Halliburton Energy Services, Inc. 92
#2 Strong Force Iot Portfolio 2016, Llc 47
#3 Optasense Holdings Limited 37
#4 Silixa Ltd. 26
#5 Computational Systems, Inc. 25
#6 S.p.m. Instrument AB 22
#7 HIFI Engineering Inc. 20
#8 Fluke Corporation 17
#9 Staton Techiya Llc 16
#10 PGS Geophysical AS 11
#11 BP Exploration Operating Company Limited 10
#12 Frito-lay North America, Inc. 9
#13 Sonion Nederland B.v. 9
#14 Exo Imaging, Inc. 9
#15 Conocophillips Company 8
#16 Micro Motion, Inc. 8
#17 Polytec Gmbh 8
#18 Vascular Imaging Corporation 8
#19 Augury Systems Ltd. 8
#20 Shenzhen Shokz Co., Ltd. 7

About This Class

CPC subclass G01H belongs to class G01.

3,605 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 G01H 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 G01H assignees by class footprint. Bubble size = patents in G01H. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 G01H assignees by class footprint. Bubble size = patents in G01H. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 10152025 020406080100 Patents in G01H Avg claims / patent (company-wide) Halliburton Energy Se…Strong Force Iot Port…Optasense HoldingsSilixaComputational SystemsS P M Instrument AbHifi EngineeringFlukeStaton TechiyaPgs Geophysical AsBp Exploration Operat…Frito-lay North Ameri…Sonion Nederland B VExo Imaging
Top 14 G01H assignees by class footprint. Bubble size = patents in G01H. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class G01H?
CPC subclass G01H covers MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES. It belongs to CPC class G01 (MEASURING; TESTING), with 3,605 US utility patents granted since 2015.
How many patents have been filed in G01H?
3,605 US utility patents were granted in CPC subclass G01H between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in G01H?
NEC Corporation leads G01H with 130 patents, making it the most active assignee in this technology area.
How is patent data for G01H 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 G01H 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.