Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11292914 | Compositions and methods and uses relating thereto | Anna Dobrowolska | 2022-04-05 |
| 11059316 | Relation to security printing | Angus WARD, David BEDFORD | 2021-07-13 |
| 10259255 | Security printing | David Malcolm Lewis | 2019-04-16 |
| 6518346 | Catalysts for producing cold or hot cross-linkable masses | Peter Born, Uwe Weinbrecht | 2003-02-11 |
| 6197186 | Process for preparing silver compounds | Frank Houselmann | 2001-03-06 |
| 6194369 | Pickling/activation solution for the pretreatment of aluminum-steel composites prior to dip tinning | Jan Eberhardt, Frank Honselmann | 2001-02-27 |
| 6187281 | Process for the thermal preparation of tin (IV) sulfides | Volker Von Drach | 2001-02-13 |
| 6183617 | Self-regulating, acidic electrolytes for dip-tin-plating aluminum alloys | Frank Honselmann | 2001-02-06 |
| 6103088 | Process for preparing bismuth compounds | Frank Honselmann | 2000-08-15 |
| 5654457 | Method for synthesizing alkyl tin fluorides | Stefan Bergfried, Sven-Uwe Vallerien | 1997-08-05 |
| 5456943 | Method for the preparation of electrically conductive infrared-reflecting layers on glass, glass-ceramic or enamel surfaces | Sven-Uwe Vallerien | 1995-10-10 |