Randall C. Smith
27Patents
10h-index
9Co-inventors
68Inventor score
Filing activity: Apr 19, 1977 → May 6, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4701957A | Dual mode music instrument preamplifier | Physics | 32 | Expired |
| US4211893A | Dual mode music instrument amplifier | Electricity | 25 | Expired |
| US4593251A | Power amplifier capable of simultaneous operation in two classes | Electricity | 24 | Expired |
| US4149262A | Associative memory device with variable recognition criteria | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6522752B1 | Parallel channel multi mode music amplifier | Physics | 11 | Expired |
| US4257110A | Recognition memory with multiwrite and masking | Physics | 11 | Expired |
| US7444195B2 | System and method for morphable model design space definition | Emerging Cross-Sectional Technologies | 11 | Active |
| US6621907B1 | Mute circuit for use with switching relays | Physics | 10 | Expired |
| US4713624A | Power amplifier with modified dynamic response | Electricity | 10 | Expired |
| US5091700A | Amplifier with mains voltage reduction | Electricity | 10 | Expired |
| US5168438A | Selectable dual rectifier power supply for musical amplifier | Electricity | 9 | Expired |
| US5559469A | Vacuum tube amplifier with selectable power devices | Electricity | 8 | Expired |
| US7571084B2 | System and method for morphable engineering criteria | Emerging Cross-Sectional Technologies | 7 | Active |
| US4532476A | Power amplifier capable of simultaneous operation in two classes | Electricity | 7 | Expired |
| US5793252A | Power amplifier with switchable voicing elements | Electricity | 6 | Expired |
| US7173488B2 | Vacuum tube power amplifier switchable between push-pull and single ended configurations | Electricity | 5 | Expired |
| USD636374S1 | Guitar amplifier | General | 5 | Expired |
| US6724897B1 | Amplifier with alternate output level | Electricity | 4 | Expired |
| US7602927B2 | Guitar amplifier with channel-dedicated power switching | Physics | 4 | Active |
| US7519522B2 | System and method for morphable model design space definition | Physics | 4 | Expired |
| US7440877B2 | System and method for morphable model design space definition | Emerging Cross-Sectional Technologies | 3 | Active |
| US8766082B2 | Amplifier with selectable master control | Electricity | 3 | Active |
| US7193458B2 | Power supply for guitar amplifier | Electricity | 2 | Expired |
| US9917560B1 | Incremental wattage reduction in a vacuum tube amplifier | Electricity | 2 | Active |
| US7412064B2 | Presence control for guitar amplifier | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.