PlainPatent

CPC technology class · G01

G01J - Measurement Of Intensity

Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light; colorimetry; radiation pyrometry. 16,402 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

16,402
US patents granted
#6/18
in G01
4.2%
G01 class share
+5%
5-yr velocity

The verdict

According to USPTO PatentsView, Measurement Of Intensity ranks #115 of 670 CPC technology areas - 16,402 US patents granted since 2015, with recorded grant volume up 5% over five years.

#115
of 670 CPC technology areas
16,402
US patents granted, 2015–2025
Samsung
leading assignee (389)
+5%
grant velocity, last 5 yrs

How G01J's grant cadence moved

Between 2020–2024, G01J recorded 7,500 grants versus 7,133 in 2015–2019 (+5% equal-window velocity). Across complete years, output peaked in 2019 at 1,720 grants and bottomed in 2015 at 1,217 (+41% peak-over-trough). Lead assignee Hamamatsu Photonics K.K. holds 1.5% of the class ; the top three share 3.3%.

Leaderboard read

G01J concentration, lead at 1.5%

Hamamatsu Photonics K.K. leads this historical grant record at 1.5% of G01J - foreign corporation assignees hold 53% of class grants (3,770 of 7,123). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
1.5%

253 of 16,402 grants

Top three share
3.3%

of the class's recorded grants

Lead over #2
108

more grants than Viavi Solutions Inc.

Where G01J sits inside G01

Among 18 subclasses in G01 (MEASURING; Testing), G01J ranks #6 and holds 4.2% 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 G01M 14,845 G01V 14,307 G01D 14,112

Rising assignees active in G01J

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. #1 Teledyne Flir Commercial Systems, Inc. 39x 0 → 39 company-wide · 14 in G01J
  2. #2 Nova Ltd. 18x 2 → 36 company-wide · 11 in G01J
  3. #3 Project Canary, PBC 16x 2 → 31 company-wide · 7 in G01J
  4. #4 Calumino Pty Ltd. 14x 0 → 14 company-wide · 8 in G01J
  5. #5 Teledyne Flir, LLC 14x 0 → 14 company-wide · 5 in G01J

G01J grants by year, peak 2019 (1,720)

US utility-patent grants per year in G01J, 2015–2025 - recent five years are up 5% versus 2015–2019.

8001,0001,2001,4001,6001,800 20152016201720182019202020212022202320242025 1,007

Who leads G01J?

The 12 most active assignees in Measurement OF Intensity, Velocity, Spectral Content, Polarisation, Phase OR Pulse Characteristics OF Infrared, Visible OR Ultraviolet LIGHT; COLORIMETRY; Radiation Pyrometry - wider bars mean more grants

patents

What this shows Samsung is the most active filer in G01J, holding 389 of the 16,402 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 G01J
Rank Company Patents in G01J
#1 Hamamatsu Photonics K.K. 253
#2 Viavi Solutions Inc. 145
#3 Raytheon Company 142
#4 Commissariat A L'energie Atomique ET AUX Energies Alternatives 117
#5 Konica Minolta, Inc. 91
#6 Pixart Imaging Inc. 90
#7 Halliburton Energy Services, Inc. 88
#8 Shimadzu Corporation 84
#9 Tsinghua University 64
#10 Asml Netherlands B.V. 55
#11 Rebellion Photonics, Inc. 52
#12 Cilag GmbH International 50
#13 BAE Systems Information and Electronic Systems Integration Inc. 50
#14 Wavefront Research, Inc. 50
#15 ARC Devices Limited 50
#16 Olympus Corporation 49
#17 Kla-tencor Corporation 49
#18 Omni Medsci, Inc. 48
#19 Flir Systems, Inc. 47
#20 STMicroelectronics (Research & Development) Limited 44

Footprint here vs. claim strategy

Each dot is a leading G01J 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 G01J assignees by class footprint. Bubble size = patents in G01J. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 050100150200250300 Patents in G01J Avg claims / patent (company-wide) Hamamatsu Photonics K…Viavi SolutionsRaytheonCommissariat A…Konica MinoltaPixart ImagingHalliburton Energy…ShimadzuTsinghua UniversityAsml Netherlands B VRebellion PhotonicsCilag InternationalBae Systems Informatio…Wavefront Research
Top 14 G01J assignees by class footprint. Bubble size = patents in G01J. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near G01J's 16,402-grant footprint

Nationwide nearest neighbors for G01J (#115 of 670 by volume ; lead share 2.4%) - not the G01 parent-class siblings above.

Nearest by grant volume

C22C 16,292 A63B 16,525 F02C 16,237 F04D 16,174

Nearest by lead-assignee share

F21W 2.4% B32B 2.3% F03G 2.4% G01D 2.3%

Questions about G01J

Which company holds the most patents in G01J?
Samsung Electronics Co., Ltd. leads G01J with 389 patents (1.5% of the subclass). By PatentsView assignee type, foreign corporations account for 53% of class grants.
Which G01J assignees grew fastest recently?
Among assignees with ≥5 grants in G01J, Teledyne Flir Commercial Systems, Inc. shows the highest company-wide grant multiple (39x: 0 grants in 2019–2021 → 39 in 2022–2024) while holding 14 patents in this subclass. Growth is company-wide, not class-only.
How does G01J compare inside parent class G01?
Inside G01 (MEASURING; Testing), G01J ranks #6 of 18 subclasses by grant volume and holds 4.2% of the parent class total. The largest sibling is G01N (115,972 grants).

What to do with this data

G01J in context - here's where to go next.

  • Hamamatsu Photonics K.K. leads G01J with 253 grants in this class. See full portfolio
  • G01J ranks #115 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 - G01J figures are USPTO PatentsView granted-utility totals for this subclass (16,402 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.