Inventor · Zeven, DE

Lothar Maempel

11Patents
7h-index
19Co-inventors
59Inventor score

Filing activity: Oct 21, 1986 → Apr 28, 1997

Most-cited inventions

PatentTitleAreaCited byStatus
US5055516A Preparation of emulsifier-free aqueous polyurethane dispersions Chemistry; Metallurgy 22 Expired
US5387367A Nonaqueous polyisocyanate formulation Chemistry; Metallurgy 12 Expired
US4861826A Aqueous polyurethane adhesive dispersions Chemistry; Metallurgy 10 Expired
US5308914A Aqueous polyurethane dispersions Chemistry; Metallurgy 9 Expired
US5231130A Aqueous polyurethane dispersions Chemistry; Metallurgy 9 Expired
US5268417A Aqueous synthetic resin preparation capable of cross-linking at room temperature and the use thereof as a laminating adhesive Chemistry; Metallurgy 9 Expired
US4731402A Floor covering adhesive based on aqueous polymer dispersions Chemistry; Metallurgy 7 Expired
US5891580A Use of aqueous polyurethane dispersions as adhesives for laminated films Emerging Cross-Sectional Technologies 6 Expired
US5395892A Copolymers crosslinking at room temperature Chemistry; Metallurgy 6 Expired
US5350823A Copolymers crosslinking at room temperature Chemistry; Metallurgy 4 Expired
US5270383A Preparation of aqueous polyurethane dispersions Chemistry; Metallurgy 2 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.