Kollefrath; Ralf
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kollefrath; Ralf.The latest application filed is for "dental instrument".
- Kollefrath; Ralf - Ruethi CH
- Kollefrath; Ralf - Ruthi CH
- Kollefrath; Ralf - Oberriet CH
| Patent | Date |
|---|---|
| Dental instrument Grant 10,716,644 - Kollefrath , et al. | 2020-07-21 |
| Dental Instrument App 20180000558 - KOLLEFRATH; Ralf ; et al. | 2018-01-04 |
| Polymeric Material for Taking a Dental Impression and Method Thereof App 20140134572 - Lampl; Stephan ; et al. | 2014-05-15 |
| Clear silicone material for the registration of fingerprints Grant 8,142,833 - Lubbers , et al. March 27, 2 | 2012-03-27 |
| Hardenable dental material Grant 7,998,264 - Lubbers , et al. August 16, 2 | 2011-08-16 |
| Process for the retraction of sulcus Grant 7,789,663 - Kollefrath , et al. September 7, 2 | 2010-09-07 |
| Dental Kit and Method for Retracting Sulcus App 20100035213 - Lubbers; Dierk ; et al. | 2010-02-11 |
| Process for the retraction of sulcus Grant 7,549,862 - Kollefrath , et al. June 23, 2 | 2009-06-23 |
| Retraction Of Sulcus App 20090061393 - Kollefrath; Ralf ; et al. | 2009-03-05 |
| Process for the retraction of sulcus App 20070160952 - Kollefrath; Ralf ; et al. | 2007-07-12 |
| Hardenable dental material App 20070154861 - Lubbers; Dierk ; et al. | 2007-07-05 |
| Dental kit and method for retracting sulcus App 20070065770 - Lubbers; Dierk ; et al. | 2007-03-22 |
| Quick set silicone based dental impression materials App 20060281856 - Kollefrath; Ralf ; et al. | 2006-12-14 |
| Clear silicone material for the registration of fingerprints App 20060165871 - Lubbers; Dierk ; et al. | 2006-07-27 |
| Process for the retraction of sulcus App 20050202367 - Kollefrath, Ralf ; et al. | 2005-09-15 |
| Dental kit and method for retracting sulcus App 20050069838 - Kollefrath, Ralf ; et al. | 2005-03-31 |
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