Inventor · disambiguated record
Winfried T. Holfeld
Also filed as: HOLFELD WINFRIED T · HOLFELD WINFRIED THOMAS
5 granted patents·44 citations·filing 1975–1993
79Inventor score
Technology areasD06P
Files withDU PONT5
Top patents by PatentIndex Score
5 records- 0171US4030880AProcess for improving dyeabilityDU PONT·Filed 1975·Granted Jun 21, 1977·10 cites·5 claims
- 0270US5230709APolyamide dyeing process utilizing controlled anionic dye additionDU PONT·Filed 1991·Granted Jul 27, 1993·19 cites·27 claims
- 0346US5366511AWool dyeing utilizing controlled dye additionDU PONT·Filed 1993·Granted Nov 22, 1994·8 cites·7 claims
- 0434US5314504AProcess for the application of dye fixing agents to polyamide fiber utilizing controlled fixing agent additionDU PONT·Filed 1993·Granted May 24, 1994·4 cites·9 claims
- 0533US5318598ANonaqueous polyamide dyeing process utilizing controlled dye additionDU PONT·Filed 1993·Granted Jun 7, 1994·3 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Winfried T. Holfeld files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →