Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6674371 | Utility meter remote reader | Michael Ross Middleton | 2004-01-06 |
| 5682422 | Apparatus and method for on-demand activation of telephone line telemetry devices | — | 1997-10-28 |
| 5677947 | Apparatus and method for operating a telephone line telemetry device in a multiple host environment | — | 1997-10-14 |
| 5488654 | Telemetry device including a dynamic off-hook detector capable of operationg in a pulse-dialing environment | — | 1996-01-30 |
| 5485509 | Telemetry device including a dynamic off-hook detector | — | 1996-01-16 |
| 5235634 | Apparatus and method for activating an inbound telemetry device | — | 1993-08-10 |
| 5204896 | Outbound telemetry device | — | 1993-04-20 |
| 5202916 | Signal proessing circuit for use in telemetry devices | — | 1993-04-13 |
| 4839917 | Universal line status monitoring and response system | — | 1989-06-13 |
| 4710919 | Multiplex system for automatic meter reading | John Cosgrove | 1987-12-01 |
| 4578536 | Centerpoint automatic meter reading system | John Cosgrove | 1986-03-25 |
| 4540849 | Meter interface unit for utility meter reading system | — | 1985-09-10 |
| 4489220 | Test set | — | 1984-12-18 |