- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 9/38 - Encryption being effected by mechanical apparatus, e.g. rotating cams, switches, keytape punchers
Patent holdings for IPC class H04L 9/38
Total number of patents in this class: 33
10-year publication summary
3
|
3
|
4
|
4
|
7
|
6
|
6
|
3
|
1
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
International Business Machines Corporation | 60644 |
3 |
Robert Bosch GmbH | 40953 |
2 |
Malikie Innovations Limited | 7703 |
2 |
BASF SE | 19740 |
1 |
Hewlett-Packard Development Company, L.P. | 28538 |
1 |
Electronics and Telecommunications Research Institute | 8830 |
1 |
Cellco Partnership d/b/a Verizon Wireless | 669 |
1 |
Amazon Technologies, Inc. | 24422 |
1 |
Lexmark International, Inc. | 1793 |
1 |
Bosch Automotive Service Solutions Inc. | 250 |
1 |
Briggs & Stratton Corporation | 78 |
1 |
Broadridge Financial Solutions, Inc. | 79 |
1 |
Fudan University | 585 |
1 |
Intrinsic ID B.V. | 57 |
1 |
Korea Water Resources Corporation | 36 |
1 |
Nationz Technologies Inc. | 162 |
1 |
PQ Solutions Limited | 27 |
1 |
The Regents of the University of Colorado, a body corporate | 2430 |
1 |
Rolls-Royce Corporation | 1686 |
1 |
Rolls-Royce North American Technologies, Inc. | 1079 |
1 |
Other owners | 9 |