| D967719 |
Metal detector |
Anthony H. Tran, Brent C. Weaver |
2022-10-25 |
| D945282 |
Metal detector search coil |
Anthony H. Tran, Brent C. Weaver |
2022-03-08 |
| 9347798 |
Metal detector with hermetic housing |
Gerald L. Johnson, Brent C. Weaver |
2016-05-24 |
| 7575065 |
Metal detector with excavation tool |
— |
2009-08-18 |
| D583261 |
Hand held metal detector |
Gerald L. Johnson |
2008-12-23 |
| D533792 |
Metal detector |
Gerald L. Johnson, Brent C. Weaver |
2006-12-19 |
| 5786696 |
Metal detector for identifying target electrical characteristics, depth and size |
Brent C. Weaver, Ayaz Nemat |
1998-07-28 |
| 5721489 |
Metal detector method for identifying target size |
Brent C. Weaver, Ayaz Nemat |
1998-02-24 |
| D333990 |
Metal detector |
Gerald L. Johnson |
1993-03-16 |
| 5148151 |
Metal detector having target characterization and search classification |
— |
1992-09-15 |
| 5138262 |
Metal detector having detachable battery and speaker housing |
Gerald L. Johnson |
1992-08-11 |
| D297221 |
Walk-through metal detector |
— |
1988-08-16 |
| 4709213 |
Metal detector having digital signal processing |
— |
1987-11-24 |
| 4700139 |
Metal detector circuit having selectable exclusion range for unwanted objects |
— |
1987-10-13 |
| 4488115 |
Low battery voltage indicator circuit for a metal detector |
— |
1984-12-11 |
| D274704 |
Metal detector |
Charles L. Garrett |
1984-07-17 |
| 4423377 |
Compact metal detector of the balanced induction type |
— |
1983-12-27 |
| 4398104 |
Low drift tuning circuit |
— |
1983-08-09 |
| 4334191 |
Metal detector circuit having momentary disabled output |
— |
1982-06-08 |
| 4334192 |
Metal detector circuit having automatic tuning with multiple rates |
— |
1982-06-08 |
| 4303879 |
Metal detector circuit with mode selection and automatic tuning |
— |
1981-12-01 |