Assignee
RISBERG ROBERT L
US·4 granted patents·94 citations·filing 1975–1986
Top patents by PatentIndex Score
4 records- 0182US4465943AUninterrupted power system with frequency and phase controlRISBERG ROBERT L·Filed 1983·Granted Aug 14, 1984·54 cites·9 claims
- 0271US4054818ASolid state current source polyphase inverter induction motor driveRISBERG ROBERT L·Filed 1975·Granted Oct 18, 1977·18 cites·11 claims
- 0343US4623910ASemiconductor deviceRISBERG ROBERT L·Filed 1982·Granted Nov 18, 1986·11 cites·7 claims
- 0441US4811072ASemiconductor deviceRISBERG ROBERT L·Filed 1986·Granted Mar 7, 1989·11 cites·34 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →