Patent holdings for IPC class H01J 7/46

Total number of patents in this class: 16

10-year publication summary

1
1
0
0
0
0
0
0
1
0
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Tokyo Electron Limited
13207
2
Topanga USA, Inc.
10
2
Trustees of Tufts College
919
2
Seiko Epson Corporation
19734
1
Cymer, LLC
400
1
Commissariat à l'énergie atomique et aux energies alternatives
10970
1
Cedar Ridge Research, LLC
6
1
Ceravision Limited
42
1
Levitronics, Inc.
2
1
LUXIM Corporation
16
1
Tohoku University
2855
1
Topanga Technologies, Inc.
4
1
The United States of America as represented by the Secretary of the Air Force
875
1
Other owners 0