Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128988 | Telephone-switched network, automatic meter-reading system based upon service address | Ronald S. Jahr | 1992-07-07 |
| 4707852 | Utility usage data and event data acquisition system | Ronald S. Jahr | 1987-11-17 |
| 4504831 | Utility usage data and event data acquisition system | Ronald S. Jahr | 1985-03-12 |