Issued Patents All Time
Showing 151–158 of 158 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4999641 | Magnetic antenna system having independently controllable electrical field shielding and magnetic field balance | Michael F. Hartings | 1991-03-12 |
| 4903788 | Vibrating tray scale with conveying mechanism | David W. Hubbard | 1990-02-27 |
| 4856602 | Apparatus and method of weighing articles based upon harmonic motion | David W. Hubbard | 1989-08-15 |
| 4849736 | Magnetic marker having a rectangular configuration for electronic article surveillance | — | 1989-07-18 |
| 4778018 | Apparatus and method of determining the mass of an article by measuring the shift in the period of harmonic motion | William G. Hart, Jr., David W. Hubbard, Morton Silverberg | 1988-10-18 |
| 4730197 | Impulse ink jet system | Gopalan Raman | 1988-03-08 |
| 4710752 | Apparatus and method for detecting a magnetic marker | — | 1987-12-01 |
| 4660058 | Viscosity switched ink jet | — | 1987-04-21 |