Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4996259 | Preparation of aqueous synthetic wax dispersions | Gernot Koehler, Juergen Schmidt-Thuemmes, Norbert Hasenbein, Lothar Schlemmer | 1991-02-26 |
| 4753885 | Foam control in the sugar industry and in the yeast industry | Klaus Lorenz, Christos Vamvakaris, Albert Hettche | 1988-06-28 |
| 4750933 | Floor polish emulsions based on ethylene copolymer | Franz Brandstetter, Walter Ziegler, Stefan Weiss, Albert Hettche, Otto Kuehneweg | 1988-06-14 |
| 4693909 | Aqueous wax dispersions as preservatives for metal surfaces and surfaces of coatings, their use and a process for preserving metal surfaces and surfaces of coatings | Walter Ziegler, Stefan Weiss, Richard W. Mueller, Albert Hettche, Klaus Glaser +1 more | 1987-09-15 |
| 4614604 | Lubricants for shaping polyvinyl chloride, which contain esterified oligomeric polyhydric alcohols | Herbert Helfert, Wolf-Dieter Balzer, Guenter Hatzmann, Albert Hettche, Stefan Weiss | 1986-09-30 |
| 4438008 | Lubricant, containing esterified ethylene/acrylic acid or ethylene/maleic acid copolymers as the active ingredient, for moulding chlorine-containing thermoplastics | Dieter Oeder, Walter Ziegler, Manfred Daeuble, Albert Hettche, Stefan Weiss | 1984-03-20 |
| 4417035 | Emulsifiable hard waxes consisting of copolymers of ethylene with unsaturated carboxylic acids | Dieter Oeder, Stefan Weiss, Walter Ziegler, Peter Kueppers, Albert Hettche | 1983-11-22 |
| 4406705 | Hard waxes comprising terpolymers of ethylene with unsaturated carboxylic acids and unsaturated carboxylic acid esters | Dieter Oeder, Stefan Weiss, Walter Ziegler, Albert Hettche | 1983-09-27 |