Robert P. Welch
2Patents
0Active
2Granted
25Portfolio score
Filing activity: Apr 24, 1978 → Jan 27, 1984
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4206831A | Loudspeaker coupler | Physics | 22 | Expired |
| US4586192A | Soundstage boundary expansion system | Electricity | 20 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.