Kniess; Helge
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kniess; Helge.The latest application filed is for "semi-transparent interference pigments containing tin".
- Kniess; Helge - Weiterstadt DE
- Kniess; Helge - Rossdorf DE
| Patent | Date |
|---|---|
| Interference pigment with a high covering power Grant 7,611,574 - Kniess , et al. November 3, 2 | 2009-11-03 |
| Semi-Transparent Interference Pigments Containing Tin App 20080210123 - Kniess; Helge ; et al. | 2008-09-04 |
| Multilayer pigments based on coated metal platelets App 20040180010 - Andes, Stephanie ; et al. | 2004-09-16 |
| Multilayer pigments based on coated metal platelets Grant 6,776,835 - Andes , et al. August 17, 2 | 2004-08-17 |
| Laser-markable plastics Grant 6,727,308 - Kniess , et al. April 27, 2 | 2004-04-27 |
| Colored interference pigments Grant 6,719,838 - Heider , et al. April 13, 2 | 2004-04-13 |
| Multilayered interference pigments Grant 6,656,259 - Pfaff , et al. December 2, 2 | 2003-12-02 |
| Multilayer pigments based on coated metal platelets App 20030209169 - Andes, Stephanie ; et al. | 2003-11-13 |
| Coloured interference pigments App 20030097965 - Heider, Lilia ; et al. | 2003-05-29 |
| Multilayered interference pigments App 20030039836 - Pfaff, Gerhard ; et al. | 2003-02-27 |
| Laser-markable plastics Grant 6,376,577 - Kniess , et al. April 23, 2 | 2002-04-23 |
| Laser-markable plastics Grant 6,291,551 - Kniess , et al. September 18, 2 | 2001-09-18 |
| Laser-markable plastics App 20010021731 - Kniess, Helge ; et al. | 2001-09-13 |
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