Inventor
Steven J. Willhoff
Inventor
Richardson, TX, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Wprimary
H04WWireless communication networks89%
G01SRadio direction-finding11%
PatentTitleYear
9,247,392'Systems and methods for location positioning of user device'20166,728,548'Method and apparatus providing teleservice segmentation and reassembly'20046,097,961'Mobile station originated SMS using digital traffic channel'20006,049,715'Method and apparatus for evaluating a received signal in a wireless communication utilizing long and short term values'20005,887,262'Smart antenna backwards compatibility in digital cellular systems'19995,878,351'Methods and apparatus for providing delayed transmission of SMS delivery acknowledgement, manual acknowledgement and SMS messages'19995,828,963'Selecting radio frequency channels for reuse in micro-cellular radio communications systems'19985,561,843'Mobile radio communications system'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–1998Patents assigned to NORTHERN TELECOM LTD (2)· patent assignee history
1996–2004Based in Richardson, TX, US· patent location history
1999–2000Patents assigned to NOKIA MOBILE PHONES LTD (3)· patent assignee history
2000Patents assigned to NORTEL NETWORKS CORP (1)· patent assignee history
2004Patents assigned to NOKIA CORP (1)· patent assignee history
2016Patents assigned to NEXTNAV LLC (1)· patent assignee history
2016Based in Stateline, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NOKIA MOBILE PHONES LTD | 3 | 1999–2000 |
| NORTHERN TELECOM LTD | 2 | 1996–1998 |
| NEXTNAV LLC | 1 | 2016 |
| NOKIA CORP | 1 | 2004 |
| NORTEL NETWORKS CORP | 1 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Richardson, Texas, US | 7 | 1996–2004 |
| Stateline, California, US | 1 | 2016 |