PlainPatent

CPC technology class · G01

G01N - Investigating OR Analysing Materials BY Determining Their…

Investigating or analysing materials by determining their chemical or physical properties. 115,972 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

115,972
US patents granted
G01
Parent CPC class
20
Active assignees
+20%
5-yr velocity

The verdict

Investigating OR Analysing Materials BY Determining Their… ranks #12 of 670 CPC technology areas - 115,972 US patents granted since 2015, with filing up 20% over five years.

#12
of 670 CPC technology areas
115,972
US patents granted, 2015–2025
The Regents of the Un…
leading assignee (1,153)
+20%
filing velocity, last 5 yrs
Top assignee: The Regents Of The University Of California (1,153 patents)

CPC subclass G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES - covers 115,972 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 G01N is shaped by 20 distinct companies actively filing in this space. The Regents Of The University Of California leads with 1,153 patents, followed by Shimadzu Corporation at 1,111 grants and Saudi Arabian OIL Company at 837.

Filing activity in G01N is up 20% 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 G01N innovation accelerating?

US utility-patent grants per year in G01N, 2015–2025 - recent five years are up 20% versus 2015–2019.

7,0008,0009,00010,00011,00012,000 20152016201720182019202020212022202320242025 7,422

Who leads G01N?

The 12 most active assignees in INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES - wider bars mean more grants

patents

What this shows The Regents of the Un… is the most active filer in G01N, holding 1,153 of the 115,972 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 G01N
Rank Company Patents in G01N
#1 The Regents Of The University Of California 1,153
#2 Shimadzu Corporation 1,111
#3 Saudi Arabian OIL Company 837
#4 Halliburton Energy Services, Inc. 816
#5 The Boeing Company 701
#6 General Electric Company 634
#7 Kla-tencor Corporation 583
#8 Massachusetts Institute Of Technology 530
#9 Canon Kabushiki Kaisha 523
#10 Schlumberger Technology Corporation 523
#11 Hitachi High-tech Corporation 515
#12 Sysmex Corporation 499
#13 Life Technologies Corporation 495
#14 Roche Diagnostics Operations, Inc. 482
#15 Becton, Dickinson And Company 481
#16 Centre National DE LA Recherche Scientifique 472
#17 Hitachi High-technologies Corporation 469
#18 President And Fellows Of Harvard College 464
#19 Waters Technologies Corporation 444
#20 The Board Of Trustees Of The Leland Stanford Junior University 443

About This Class

CPC subclass G01N belongs to class G01.

115,972 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 G01N 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 G01N assignees by class footprint. Bubble size = patents in G01N. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 G01N assignees by class footprint. Bubble size = patents in G01N. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 40060080010001200 Patents in G01N Avg claims / patent (company-wide) The Regents of the Un…ShimadzuSaudi Arabian OilHalliburton Energy Se…The BoeingGeneral ElectricKla-tencorMassachusetts Institu…CanonSchlumberger Technolo…Hitachi High-techSysmexLifeRoche Diagnostics Ope…
Top 14 G01N assignees by class footprint. Bubble size = patents in G01N. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class G01N?
CPC subclass G01N covers INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES. It belongs to CPC class G01 (MEASURING; TESTING), with 115,972 US utility patents granted since 2015.
How many patents have been filed in G01N?
115,972 US utility patents were granted in CPC subclass G01N between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in G01N?
The Regents Of The University Of California leads G01N with 1,153 patents, making it the most active assignee in this technology area.
How is patent data for G01N 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 G01N 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.