Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872864 | Method of making a cathode from tungsten and aluminum powders | Louis E. Branovich, Gerard L. Freeman, Donald W. Eckart | 1989-10-10 |
| 4863410 | Method of making a long life high current density cathode from tungsten and iridium powders using a low melting point impregnant | Louis E. Branovich, Gerard L. Freeman, Donald W. Eckart | 1989-09-05 |
| 4840767 | Method of making a cathode from tungsten and iridium powders using a barium iridiate formed from barium peroxide and iridium oxide as the impregnant | Louis E. Branovich, Gerard L. Freeman, Donald W. Eckart | 1989-06-20 |
| 4818480 | Method of making a cathode from tungsten and iridium powders using a barium peroxide containing material as the impregnant | Louis E. Branovich, Gerard L. Freeman, Donald W. Eckart | 1989-04-04 |
| 4808137 | Method of making a cathode from tungsten and iridium powders using a bariumaluminoiridiate as the impregnant | Louis E. Branovich, Gerard L. Freeman | 1989-02-28 |
| 4735591 | Method of making a long life high current density cathode from tungsten and iridium powders using a barium iridiate as the impregnant | Louis E. Branovich, Gerard L. Freeman | 1988-04-05 |
| 4734073 | Method of making a thermionic field emitter cathode | Louis E. Branovich | 1988-03-29 |
| 4708681 | Method of making a long lived high current density cathode from tungsten and iridium powders | Louis E. Branovich, Gerard L. Freeman | 1987-11-24 |
| 4599687 | Electrical power supply for a motor vehicle | — | 1986-07-08 |
| 4544535 | Method or preparing nonlaminating anisotropic boron nitride | Louis E. Branovich, Gerard L. Freeman | 1985-10-01 |
| 4444718 | Method of making a high current density cathode | Gerard L. Freeman | 1984-04-24 |
| 4410832 | EBS Device with cold-cathode | Stanley DuBuske | 1983-10-18 |
| 4236287 | Method of making a ruggedized high current density cathode | — | 1980-12-02 |