Inventor
Hans Christopher Sowa
Inventor
Schaumburg, IL, US
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication52%
H04WWireless communication networks48%
PatentTitleYear
10,524,260Device, system and method for preventing audio loss20199,402,166'Method and apparatus for assigning a talk group to a radio within a communication system'20169,332,428'Method and device for managing encrypted group rekeying in a radio network link layer encryption system'20168,964,987'Method and apparatus for storing and distributing encryption keys'20158,948,378'Method and device for rekeying in a radio network link layer encryption system'20158,817,989'Method and apparatus for storing and distributing encryption keys'20148,781,132'Method and device for managing encrypted group rekeying in a radio network link layer encryption system'20147,840,009'Method and apparatus for storing and distributing encryption keys'20107,707,419'Method and apparatus for storing and distributing encryption keys'20107,522,727'Method and apparatus for providing authentication in a communication system'20097,424,116'Method and apparatus for providing authentication in a communication system'20087,266,687'Method and apparatus for storing and distributing encryption keys'20077,123,719'Method and apparatus for providing authentication in a communication system'20065,619,572'Method and apparatus for providing secure communications for a requested call'19975,412,722'Encryption key management'19955,161,189'Encryption and decryption of chained messages'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2010Patents assigned to MOTOROLA INC (9)· patent assignee history
1992–2019Based in Schaumburg, IL, US· patent location history
2014–2019Patents assigned to MOTOROLA SOLUTIONS INC (7)· patent assignee history
2014–2015Patents assigned to ANDERSON WALTER F (2)· patent assignee history
2014–2015Patents assigned to CHATER-LEA DAVID J (2)· patent assignee history
2014–2015Patents assigned to JOHUR JASON (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MOTOROLA INC | 9 | 1992–2010 |
| MOTOROLA SOLUTIONS INC | 7 | 2014–2019 |
| ANDERSON WALTER F | 2 | 2014–2015 |
| CHATER-LEA DAVID J | 2 | 2014–2015 |
| JOHUR JASON | 2 | 2014–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Schaumburg, Illinois, US | 16 | 1992–2019 |