- All sections
- G - Physics
- G01B - Measuring length, thickness or similar linear dimensions; measuring angles; measuring areas; measuring irregularities of surfaces or contours
- G01B 9/02 - Interferometers
Patent holdings for IPC class G01B 9/02
Total number of patents in this class: 4893
10-year publication summary
|
413
|
389
|
393
|
406
|
390
|
344
|
320
|
244
|
149
|
57
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The General Hospital Corporation | 4517 |
118 |
| Canon Inc. | 36841 |
84 |
| Zygo Corporation | 203 |
76 |
| Carl Zeiss Meditec AG | 1541 |
74 |
| Carl Zeiss SMT GmbH | 2646 |
68 |
| Hamamatsu Photonics K.K. | 4161 |
66 |
| Carl Zeiss Meditec, Inc. | 282 |
58 |
| ASML Netherlands B.V. | 6816 |
57 |
| Mitutoyo Corporation | 1218 |
46 |
| KLA-Tencor Corporation | 2574 |
40 |
| The Regents of the University of California | 18943 |
37 |
| Nikon Corporation | 7162 |
35 |
| Topcon Corporation | 979 |
32 |
| Canon Kabushiki Kaisha | 6884 |
32 |
| Corning Incorporated | 9932 |
31 |
| Alcon, Inc. | 4899 |
29 |
| Excelitas Technologies Corp. | 290 |
29 |
| Apple Inc. | 50209 |
28 |
| Kabushiki Kaisha Topcon | 614 |
28 |
| Samsung Electronics Co., Ltd. | 131630 |
27 |
| Other owners | 3898 |