Inventor
Doug A. Erwin
Inventor
Austin, TX, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
LOC14primary
LOC1463%
H01RElectrically-conductive connections13%
H04MTelephonic communication13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
6,209,195'Method of mounting a connector on a printed wiring board'2001D0428868'Cordless telephone'2000D0392284'Telephone'1998D0389142'Telephone'1998D0387063'Telephone key expansion unit'1997D0386759'Telephone'1997D0375095'Telephone'1996D0374674'Telephone key expansion unit'1996D0374667'Telephone'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–1997Patents assigned to SIEMENS ROLM COMMUNICATIONS INC (3)· patent assignee history
1996–2001Based in Austin, TX, US· patent location history
1997Patents assigned to SIEMENS BUSINESS COMMUNICATION SYSTEMS (1)· patent assignee history
1998Patents assigned to SIEMENS BUSINESS COMMUNICATION SYSTEMS INC (1)· patent assignee history
2000Patents assigned to AMERITECH CORP (1)· patent assignee history
2001Patents assigned to SIEMENS INF & COMM NETWORKS (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SIEMENS ROLM COMMUNICATIONS INC | 3 | 1996–1997 |
| AMERITECH CORP | 1 | 2000 |
| SIEMENS BUSINESS COMMUNICATION SYSTEMS | 1 | 1997 |
| SIEMENS BUSINESS COMMUNICATION SYSTEMS INC | 1 | 1998 |
| SIEMENS INF & COMM NETWORKS | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Austin, Texas, US | 9 | 1996–2001 |