Individual holder
STEDEF S A
4 granted patents·74 citations·filing 1979–1984
Individually held — no corporate assignee on record.
Technology mixE01B4
Top patents by PatentIndex Score
4 records- 0173US4609144ARailroad tie coverSTEDEF S A·Filed 1984·Granted Sep 2, 1986·35 cites·19 claims
- 0256US4489884ARailroad tie coverSTEDEF S A·Filed 1982·Granted Dec 25, 1984·20 cites·10 claims
- 0346US4356968ARailroad tie coverSTEDEF S A·Filed 1980·Granted Nov 2, 1982·14 cites·11 claims
- 0432US4266720ARail fastenerSTEDEF S A·Filed 1979·Granted May 12, 1981·5 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →