Patent holdings for IPC class G09B 23/22

Total number of patents in this class: 41

10-year publication summary

4
2
2
2
5
3
5
7
3
2
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Transitions Optical Limited
133
3
Johnson & Johnson Vision Care, Inc.
1255
2
Centre National de La Recherche Scientifique
9632
2
Bioniko Consulting LLC
8
2
Carl Zeiss Vision International GmbH
556
2
Essilor International (compagnie Generale D'optique)
2918
2
Institut National de Recherche en Informatique et en Automatique
79
2
Institut Polytechnique de Bordeaux
356
2
Universite de Bordeaux
778
2
Carl Zeiss AG
855
1
Ansys, Inc.
366
1
Brien Holden Vision Institute
77
1
BT Inc.
6
1
EDX Education Co., Ltd.
16
1
Lattice Energy Technology Corporation
3
1
National Central University
224
1
National University Corporation Chiba University
472
1
Perfect IP, LLC
23
1
Philipps-universitat Marburg
111
1
The Secretary of State for Defence
445
1
Other owners 11