Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6768309 | Electronic battery condition tester | Elliot Gerard | 2004-07-27 |
| 5498873 | Refrigerant impurity analyzer | Philip Salzmann | 1996-03-12 |
| 5400015 | Filter circuit for a gaseous leak detector | — | 1995-03-21 |
| 5321209 | Electronic weighing device | Philip Salzmann | 1994-06-14 |
| 5136885 | Quartz crystal pressure sensor | Phillip Salzmann | 1992-08-11 |
| 4788858 | Fuel injector testing device and method | — | 1988-12-06 |
| 4719428 | Storage battery condition tester utilizing low load current | — | 1988-01-12 |
| RE32552 | Gaseous impurity detector employing corona discharge phenomenon | Stanley Lai | 1987-12-01 |
| 4392374 | Transducer coupling apparatus for inhomogeneity detector | — | 1983-07-12 |
| 4235095 | Device for detecting inhomogeneities such as gas bubbles | — | 1980-11-25 |
| 4213089 | Variable scale readout for multi-meter use | — | 1980-07-15 |