CPC technology class · G01
G01T - Measurement Of Nuclear Or X-radiation
Measurement of nuclear or x-radiation. 6,488 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.
- 6,488
- US patents granted
- #14/18
- in G01
- 1.6%
- G01 class share
- -14%
- 5-yr velocity
The verdict
According to USPTO PatentsView, Measurement Of Nuclear Or X-radiation ranks #221 of 670 CPC technology areas - 6,488 US patents granted since 2015, with recorded grant volume down 14% over five years.
- #221
- of 670 CPC technology areas
- 6,488
- US patents granted, 2015–2025
- Canon
- leading assignee (308)
- -14%
- grant velocity, last 5 yrs
How G01T's grant cadence moved
Between 2020–2024, G01T recorded 2,604 grants versus 3,044 in 2015–2019 (-14% equal-window velocity). Across complete years, output peaked in 2019 at 639 grants and bottomed in 2024 at 443 (+44% peak-over-trough). Lead assignee Koniniklijke Philips N.V. holds 4.0% of the class ; the top three share 8.0%.
Leaderboard read
G01T concentration, lead at 4.0%
Koniniklijke Philips N.V. leads this historical grant record at 4.0% of G01T - foreign corporation assignees hold 66% of class grants (2,160 of 3,253). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.
- Leader's share
- 4.0%
- Top three share
- 8.0%
- Lead over #2
- 128
259 of 6,488 grants
of the class's recorded grants
more grants than Hamamatsu Photonics K.K.
Where G01T sits inside G01
Among 18 subclasses in G01 (MEASURING; Testing), G01T ranks #14 and holds 1.6% 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.
Rising assignees active in G01T
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 Siemens Healthineers AG 222x 0 → 222 company-wide · 11 in G01T
- #2 Sharp Display Technology Corporation 144x 0 → 144 company-wide · 6 in G01T
- #3 Beijing BOE Sensor Technology Co., Ltd. 27x 3 → 81 company-wide · 16 in G01T
- #4 InnoCare Optoelectronics Corporation 13x 0 → 13 company-wide · 13 in G01T
- #5 Luxium Solutions, LLC 9.00x 0 → 9 company-wide · 10 in G01T
G01T grants by year, peak 2019 (639)
US utility-patent grants per year in G01T, 2015–2025 - recent five years are down 14% versus 2015–2019.
Who leads G01T?
The 12 most active assignees in Measurement OF Nuclear OR X-radiation - wider bars mean more grants
- Koniniklijke Philips
Koniniklijke Philips N.V.
259 patents
- Hamamatsu Photonics K…
Hamamatsu Photonics K.K.
131 patents
- Shenzhen Xpectvision…
Shenzhen Xpectvision Technology Co., Ltd.
130 patents
- Siemens Medical…
Siemens Medical Solutions USA, Inc.
111 patents
- Toshiba Medical… 103
Toshiba Medical Systems Corporation
103 patents
- Shanghai United… 93
Shanghai United Imaging Healthcare Co., Ltd.
93 patents
- Canon Medical Systems 91
Canon Medical Systems Corporation
91 patents
- Konica Minolta 72
Konica Minolta, Inc.
72 patents
- Siemens Healthcare 72
Siemens Healthcare Limited
72 patents
- Nuctech 63
Nuctech Company Limited
63 patents
- Shimadzu 62
Shimadzu Corporation
62 patents
- Lawrence Livermore… 54
Lawrence Livermore National Security, LLC
54 patents
What this shows Canon is the most active filer in G01T, holding 308 of the 6,488 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.
View data table
| Rank | Company | Patents in G01T |
|---|---|---|
| #1 | Koniniklijke Philips N.V. | 259 |
| #2 | Hamamatsu Photonics K.K. | 131 |
| #3 | Shenzhen Xpectvision Technology Co., Ltd. | 130 |
| #4 | Siemens Medical Solutions USA, Inc. | 111 |
| #5 | Toshiba Medical Systems Corporation | 103 |
| #6 | Shanghai United Imaging Healthcare Co., Ltd. | 93 |
| #7 | Canon Medical Systems Corporation | 91 |
| #8 | Konica Minolta, Inc. | 72 |
| #9 | Siemens Healthcare Limited | 72 |
| #10 | Nuctech Company Limited | 63 |
| #11 | Shimadzu Corporation | 62 |
| #12 | Lawrence Livermore National Security, LLC | 54 |
| #13 | Saint-gobain Ceramics & Plastics, Inc. | 53 |
| #14 | Carestream Health, Inc. | 41 |
| #15 | GE Precision Healthcare LLC | 37 |
| #16 | Analogic Corporation | 32 |
| #17 | Prismatic Sensors AB | 32 |
| #18 | Radiation Monitoring Devices, Inc. | 30 |
| #19 | Varex Imaging Corporation | 28 |
| #20 | The Research Foundation for The State University of New York | 26 |
Footprint here vs. claim strategy
Each dot is a leading G01T 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.
Classes near G01T's 6,488-grant footprint
Nationwide nearest neighbors for G01T (#221 of 670 by volume ; lead share 4.7%) - not the G01 parent-class siblings above.
Nearest by grant volume
Questions about G01T
Which company holds the most patents in G01T?
Which G01T assignees grew fastest recently?
How does G01T compare inside parent class G01?
What to do with this data
G01T in context - here's where to go next.
- Koniniklijke Philips N.V. leads G01T with 259 grants in this class. See full portfolio
- G01T ranks #221 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 - G01T figures are USPTO PatentsView granted-utility totals for this subclass (6,488 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.