Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7612024 | Polyalkylene glycol based solutions with enhanced high temperature stability | Minyu Li, Kimberly Person Hei | 2009-11-03 |
| 7569532 | Stable liquid enzyme compositions | Victor Fuk-Pong Man, Steven E. Lentsch, Nathan D. Peitersen, Paul Frazer Schacht, Rick O. Ruhr +1 more | 2009-08-04 |
| 7220358 | Methods for treating membranes and separation facilities and membrane treatment composition | Paul Frazer Schacht, Robert D. P. Hei, Richard Staub, Ralf Krack, Peter J. Fernholz +1 more | 2007-05-22 |
| 7125827 | Lubricant composition having a fatty acid, a polyalkylene glycol polymer, and an anionic surfactant, wherein the lubricant is for a conveyor system | Minyu Li, Kimberly L. P. Hei | 2006-10-24 |