Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10801114 | Process for the protection against corrosion of an article in a wet environment and composition therefore | Jan Frederik Doddema, Hindrik Harm Broesder | 2020-10-13 |
| 9926630 | Process for the protection against corrosion of an article in a wet environment and composition therefore | Jan Frederik Doddema, Hindrik Harm Broesder | 2018-03-27 |
| 5898044 | Use of a preparation for insulation/sealing and coating purposes and method for sealing manhole covers | — | 1999-04-27 |
| 5684125 | Method and device for purifying liquid polysiloxane material and its use | — | 1997-11-04 |
| 5116413 | Process and sealing agent for producing a watertight and/or gastight bushing of lines in a water-resistant and/or gas-blocking wall, and device for use thereof | — | 1992-05-26 |