Inventor
Donald A. Plouff
Inventor
The Woodlands, TX, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Mprimary
H04MTelephonic communication27%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes18%
G07FCoin-freed or like apparatus18%
H04WWireless communication networks18%
G04FTime-interval measuring9%
H04LTransmission of digital information, e.g. telegraphic communication9%
PatentTitleYear
5,220,593'Cellular radiotelephone credit card paystation method'19935,144,649'Cellular radiotelephone credit card paystation method'19924,918,630'Computer timing system having backup trigger switches for timing competitive events'19904,696,026'Multiplexed terminal for monitoring and controlling a plurality of remote telephone switches'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to GEN TELEPHONE COMPANY OF INDIA (1)· patent assignee history
1987Based in Nobelsville, IN, US· patent location history
1990Patents assigned to GTE NORTH INC (1)· patent assignee history
1990Based in Noblesville, IN, US· patent location history
1992–1993Patents assigned to GTE MOBILE COMM SERVINC (2)· patent assignee history
1992–1993Based in The Woodlands, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GTE MOBILE COMM SERVINC | 2 | 1992–1993 |
| GEN TELEPHONE COMPANY OF INDIA | 1 | 1987 |
| GTE NORTH INC | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| The Woodlands, Texas, US | 2 | 1992–1993 |
| Noblesville, IN, US | 1 | 1990 |
| Nobelsville, IN, US | 1 | 1987 |