- All sections
- G - Physics
- G01R - Measuring electric variables; measuring magnetic variables
- G01R 31/44 - Testing lamps
Patent holdings for IPC class G01R 31/44
Total number of patents in this class: 352
10-year publication summary
|
44
|
40
|
78
|
76
|
51
|
24
|
20
|
12
|
15
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lutron Technology Company LLC | 2300 |
9 |
| Samsung Electronics Co., Ltd. | 131630 |
8 |
| Samsung Display Co., Ltd. | 30585 |
8 |
| Boe Technology Group Co., Ltd. | 35384 |
8 |
| Grote Industries, Inc. | 147 |
7 |
| International Business Machines Corporation | 60644 |
6 |
| Infineon Technologies AG | 8189 |
6 |
| Mitsubishi Electric Corporation | 43934 |
5 |
| Rockwell Automation Technologies, Inc. | 2547 |
5 |
| AT&T Intellectual Property I, L.P. | 9886 |
4 |
| Robert Bosch GmbH | 40953 |
4 |
| BOE Optical Science and Technology Co., Ltd. | 153 |
4 |
| Ziota Technology Inc. | 21 |
4 |
| Signify Holding B.V. | 6837 |
4 |
| Koninklijke Philips N.V. | 22975 |
3 |
| Ford Global Technologies, LLC | 19702 |
3 |
| OSRAM GmbH | 2442 |
3 |
| Nichia Corporation | 3394 |
3 |
| Dental Imaging Technologies Corporation | 126 |
3 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 18739 |
3 |
| Other owners | 252 |