Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6717513 | Electronic message delivery system utilizable in the monitoring of remote equipment and method of same | David Sandelman, Joseph Rey | 2004-04-06 |
| 6535123 | Electronic message delivery system | David Sandelman | 2003-03-18 |
| 6462654 | Electronic message delivery system utilizable in the monitoring of remote equipment and method of same | David Sandelman | 2002-10-08 |
| 6437691 | Electronic message delivery system utilizable in the monitoring of remote equipment and method of same | David Sandelman, Joseph Rey | 2002-08-20 |
| 6211782 | Electronic message delivery system utilizable in the monitoring of remote equipment and method of same | David Sandelman | 2001-04-03 |
| 6160477 | Electronic message delivery system utilizable in the monitoring of remote equipment and method of same | David Sandelman | 2000-12-12 |
| 6152376 | Valve modulation method and system utilizing same | David Sandelman | 2000-11-28 |
| 6147601 | Electronic message delivery system utilizable in the monitoring of remote equipment and method of same | David Sandelman | 2000-11-14 |
| 5643482 | Snow melt control system | David Sandelman | 1997-07-01 |
| 5042431 | Multiple boiler control system and method of operation | Jana Marakowitz, David Sandelman | 1991-08-27 |
| 4755730 | Variable resistance output motor controller | David Sandelman, Douglas J. Lionetti | 1988-07-05 |
| 4191328 | Integral thermostat-digital clock unit | Roger H. Isaacs, David Sandelman | 1980-03-04 |