- All sections
- G - Physics
- G01B - Measuring length, thickness or similar linear dimensionsmeasuring anglesmeasuring areasmeasuring irregularities of surfaces or contours
- G01B 9/02 - Interferometers
Patent holdings for IPC class G01B 9/02
Total number of patents in this class: 4718
10-year publication summary
|
393
|
405
|
394
|
344
|
310
|
236
|
165
|
168
|
132
|
93
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The General Hospital Corporation | 4871 |
95 |
| Carl Zeiss SMT GmbH | 3339 |
76 |
| Hamamatsu Photonics K.K. | 4686 |
72 |
| Canon Inc. | 43869 |
71 |
| Carl Zeiss Meditec AG | 1684 |
66 |
| Zygo Corporation | 167 |
65 |
| ASML Netherlands B.V. | 7939 |
57 |
| Carl Zeiss Meditec, Inc. | 271 |
50 |
| Mitutoyo Corporation | 1260 |
40 |
| KLA-Tencor Corporation | 2518 |
39 |
| Alcon, Inc. | 5876 |
38 |
| Nikon Corporation | 7226 |
36 |
| The Regents of the University of California | 20778 |
32 |
| Canon Kabushiki Kaisha | 7341 |
32 |
| KLA Corporation | 1856 |
31 |
| Apple Inc. | 58885 |
30 |
| Samsung Electronics Co., Ltd. | 157946 |
28 |
| Kabushiki Kaisha Topcon | 554 |
28 |
| Corning Incorporated | 10510 |
27 |
| Topcon Corporation | 1188 |
27 |
| Other owners | 3778 |