Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11643731 | Method for nickel-free phosphating metal surfaces | Thomas Kolberg, Lisa Seider | 2023-05-09 |
| 11492707 | Method for specifically adjusting the electrical conductivity of conversion coatings | Frank Hollmann, Michael Droege, Thomas Kolberg, Lisa Schmeier | 2022-11-08 |
| 11124880 | Method for nickel-free phosphating metal surfaces | Lisa Schmeier | 2021-09-21 |
| 10738383 | Method for nickel-free phosphating metal surfaces | Frank Hollmann, Lisa Schmeier | 2020-08-11 |
| 9364855 | Method for coating metal surfaces with an activating agent prior to phosphating | Thomas Kolberg, Eckart Schonfelder, Manfred Walter | 2016-06-14 |
| 9358574 | Method for coating metal surfaces with an activating agent prior to phosphating | Thomas Kolberg, Eckart Schoenfelder, Manfred Walter | 2016-06-07 |