Inventor · disambiguated record
Robert D. Sigman
Also filed as: SIGMAN ROBERT D
2 granted patents·72 citations·filing 1976–1993
66Inventor score
Files withWESTINGHOUSE ELECTRIC CORP2
Top patents by PatentIndex Score
2 records- 0182US5477023ALaser engraving system and method for engraving an image on a workpieceWESTINGHOUSE ELECTRIC CORP·Filed 1993·Granted Dec 19, 1995·38 cites·20 claims
- 0281US4095077AAutomatic hot filler wire welding method and apparatusWESTINGHOUSE ELECTRIC CORP·Filed 1976·Granted Jun 13, 1978·34 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →