Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10954164 | Formed hexagonal boron nitride body, heat-treated hexagonal boron nitride body and processes for producing the same | Jan C. Zimmer, Ursula Kayser, Krishna Uibel | 2021-03-23 |
| 10829417 | Formed hexagonal boron nitride body, hexagonal boron nitride granulates for making the same, and process for producing the same | Krishna Uibel, Jan C. Zimmer, Robert M. Schädel | 2020-11-10 |
| 10415351 | Separating device for removing solid particles from liquid and gas flows for high differential pressures | Dietrich Lange, Alexander Krecker | 2019-09-17 |
| 8012252 | Durable hard coating containing silicon nitride | Martin Engler, Krishna Uibel | 2011-09-06 |
| 6979466 | Nanoscale particles having an iron oxide-containing core enveloped by at least two shells | Thomas Schiestel, Helmut Schmidt, Andreas Jordan | 2005-12-27 |
| 6870047 | Magnetic pigment | Jorg Kleiber, Thomas Walter, Herbert Harttig, Martin Mennig, Michael Riedling +1 more | 2005-03-22 |
| 6630205 | Self-crosslinking compositions based on fluorine-containing polycondensates | Stefan Brueck, Hermann Schirra, Helmut Schmidt | 2003-10-07 |
| 6541039 | Nanoscale particles having an iron oxide-containing core enveloped by at least two shells | Thomas Schiestel, Helmut Schmidt, Andreas Jordan | 2003-04-01 |
| 6255477 | Particles having a magnetic core and outer glass layer for separating biological material | Jorg Kleiber, Thomas Walter, Herbert Harttig, Martin Mennig, Michael Riedling +1 more | 2001-07-03 |
| 6183658 | Process for preparing agglomerate-free nanoscalar iron oxide particles with a hydrolysis resistant coating | Thomas Schiestel, Rudiger Nass, Helmut Schmidt | 2001-02-06 |
| 5837025 | Method of producing fine-particle multicomponent glass powders for use as a glass flow for producing layers and decorations on glass, glass ceramic or ceramic | Petra Auchter-Krummel, Waldemar Weinberg, Rudiger Nass, Helmut Schmidt, Nanning Joerg Arfsten | 1998-11-17 |