Issued Patents All Time
Showing 76–90 of 90 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6444720 | Open-cell rigid polyurethane foams | Bert Klesczewski, Pramod Gupta | 2002-09-03 |
| 6391820 | Bi-metallic-cyanide catalysts used for preparing polyether polyols | Pieter Ooms, Pramod Gupta, Walter Schafer | 2002-05-21 |
| 6381795 | Brush part for electrical toothbrush | Raimund Hofmann | 2002-05-07 |
| 6376420 | Double-metal cyanide catalysts for producing polyether polyols | Pieter Ooms, Pramod Gupta | 2002-04-23 |
| 6323375 | Crystalline double metal cyanide catalysts for producing polyether polyols | Pramod Gupta, Robert J. Kumpf, Pieter Ooms, Walter Schafer, Michael Schneider | 2001-11-27 |
| 6291388 | Double metal cyanide catalysts for producing polyether polyols | Pieter Ooms, Pramod Gupta, Walter Schafer | 2001-09-18 |
| 6204357 | Double metal cyanide catalysts for preparing poly-etherpolyols | Pieter Ooms, Pramod Gupta, Lambertus Groenendaal | 2001-03-20 |
| 6093793 | Process for the production of polyether polyols | Pramod Gupta, Harald Pielartzik | 2000-07-25 |
| 5998327 | Zinc/metal hexacyanocobaltate complex compounds, a process for their preparation, and their use in a process for the production of polyether polyols | Pramod Gupta, Harald Pielartzik, Pieter Ooms, Walter Schafer | 1999-12-07 |
| 5938945 | Method of welding weld studs to a workpiece | Roland Kurz, Klaus Schmitt | 1999-08-17 |
| 5486678 | Process of and machinery for joining two metal sheets by welding | Harald Knetsch, Kurt Liebich, Reinhold Opper, Hans Wiessler, Alois Bauer | 1996-01-23 |
| 5110271 | Hand-operable double-action metering and/or atomizing pump | — | 1992-05-05 |
| 4995752 | Ordering means for document files or the like | — | 1991-02-26 |
| 4948286 | Ordering means for document files or the like | — | 1990-08-14 |
| 4707130 | Method and apparatus for the optical measurement of fluid flow | Kurt Ding | 1987-11-17 |