Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694103 | Laminated figure 8 power meter core | David N. Makinson, Richard Timko | 1997-12-02 |
| 5537028 | Electricity meter and method for measuring apparent power | — | 1996-07-16 |
| 5521572 | Unshielded air-coupled current transformer | Charles W. Roberts | 1996-05-28 |
| 5297016 | Polyphase emulator for single phase circuit | George H. Stephens | 1994-03-22 |
| 5285058 | Optical sensor control including the suspension of light radiation | — | 1994-02-08 |
| 5027059 | Differential current shunt | Arnaud de Montgolfier | 1991-06-25 |
| 4967596 | Swing velocity indicator | John F. Rilling | 1990-11-06 |
| 4847554 | Current measuring and magnetic core compensating apparatus and method | — | 1989-07-11 |
| 4665359 | Method and apparatus for detecting tampering with a meter having an encoded register display | — | 1987-05-12 |
| 4588982 | Optical shaft encoder | — | 1986-05-13 |
| 4218748 | Apparatus and method for digitally obtaining signals having specified statistical distributions | — | 1980-08-19 |
| 4218749 | Apparatus and method for digital noise synthesis | Jean Babaud | 1980-08-19 |