Patent holdings for IPC class G02B 21/20

Total number of patents in this class: 66

10-year publication summary

4
6
7
7
16
4
7
6
0
2
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Camplex, Inc.
41
6
Sony Corporation
32931
4
Global Surgical Corporation
8
4
Evident Corporation
1072
3
Seiko Epson Corporation
18724
2
Nikon Corporation
7162
2
Microsoft Technology Licensing, LLC
51439
2
Carl Zeiss Meditec AG
1541
2
Dispelix Oy
120
2
Mitaka Kohki Co., Ltd.
55
2
Novartis AG
11238
1
Apple Inc.
50209
1
Robert Bosch GmbH
40953
1
Panasonic Intellectual Property Management Co., Ltd.
27812
1
Konica Minolta, Inc.
8349
1
OSRAM GmbH
2442
1
Nichia Corporation
3394
1
Boe Technology Group Co., Ltd.
35384
1
Alcoa Inc.
323
1
Alcon, Inc.
4899
1
Other owners 27