Patent holdings for IPC class G09B 23/22

Total number of patents in this class: 45

10-year publication summary

2
2
2
5
2
4
7
3
6
2
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Transitions Optical Limited
160
4
Centre National de La Recherche Scientifique
10516
2
Bioniko Consulting LLC
10
2
Carl Zeiss Vision International GmbH
636
2
Essilor International (compagnie Generale D'optique)
2991
2
Institut National de Recherche en Informatique et en Automatique
110
2
Institut Polytechnique de Bordeaux
401
2
Shamir Optical Industry Ltd.
179
2
Universite de Bordeaux
866
2
Johnson & Johnson Vision Care, Inc.
1182
1
Carl Zeiss AG
895
1
Ansys, Inc.
409
1
Beckman Coulter, Inc.
1284
1
Brien Holden Vision Institute
66
1
BT Inc.
6
1
EDX Education Co., Ltd.
17
1
Lattice Energy Technology Corporation
2
1
National Central University
243
1
National University Corporation Chiba University
502
1
Perfect IP, LLC
22
1
Other owners 14