Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665905 | Calibration standard for 2-D and 3-D profilometry in the sub-nanometer range and method of producing it | Johann W. Bartha, Johann Greschner, Martin Nonnenmacher, deceased, Helga Weiss | 1997-09-09 |
| 5646339 | Force microscope and method for measuring atomic forces in multiple directions | Johann Greschner, Martin Nonnenmacher, deceased | 1997-07-08 |
| 5615968 | Hand rail coupler system | Douglas R. Verenski | 1997-04-01 |