WH

Winfried T. Holfeld

EA E.I. Du Pont De Nemours And: 4 patents #1,770 of 8,010Top 25%
📍 Wilmington, DE: #911 of 3,182 inventorsTop 30%
🗺 Delaware: #1,825 of 7,163 inventorsTop 30%
Overall (All Time): #1,057,721 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5366511 Wool dyeing utilizing controlled dye addition Dale E. Mancuso 1994-11-22
5318598 Nonaqueous polyamide dyeing process utilizing controlled dye addition Dale E. Mancuso 1994-06-07
5314504 Process for the application of dye fixing agents to polyamide fiber utilizing controlled fixing agent addition Dale E. Mancuso 1994-05-24
5230709 Polyamide dyeing process utilizing controlled anionic dye addition Dale E. Mancuso 1993-07-27
T100202 Process for calendering knit fabrics 1981-01-06