Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639977 | System and method for reverse billing of a telephone call | Bobb Swope | 2003-10-28 |
| 6636591 | System and method for affecting inmate conduct with good behavior discount telephone rates | Bobb Swope | 2003-10-21 |
| 5465904 | Domestic watering and agricultural irrigation control system | — | 1995-11-14 |
| 4797914 | Telephone display | — | 1989-01-10 |
| RE31122 | Method for ascertaining optimum location for well stimulation and/or perforation | Walter H. Fertl | 1983-01-11 |
| 4187908 | Method for ascertaining optimum location for well stimulation and/or perforation | Walter H. Fertl | 1980-02-12 |