Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5560736 | Process for sealing out water leakage from geological rock formations | Hans Mehesch, Dieter Wobig, Martin Fischer, Oliver Czysollek | 1996-10-01 |
| 5312486 | Water-containing, hardenable foam compositions with inorganic components and process for their preparation | Frank Meyer, Hans Mehesch, Martin Fischer, Birgit Riecks, Karlheinz Neuschaffer | 1994-05-17 |
| 4965292 | Process for strengthening geological formations | Hanns P. Muller, Manfred Kapps, Peter Vehlewald, Frank Meyer, Hans Mehesch | 1990-10-23 |
| 4904125 | Process for strengthening geological formations | Manfred Schmidt, Manfred Kapps, Max Mann, Peter Vehlewald, Manfred Dietrich +2 more | 1990-02-27 |
| 4792262 | Process for strengthening geological formations | Manfred Kapps, Max Mann, Peter Vehlewald, Frank Meyer, Hans Mehesch +1 more | 1988-12-20 |
| 4761099 | Process for strengthening and sealing geological formations | Max Mann, Manfred Kapps, Frank Meyer, Hans Mehesch, Bernhard Maidl +2 more | 1988-08-02 |
| 4652174 | Method of forming underground ducts, conduits and the like | Dietrich Stein, Bernhard Maidl, Karl Kubicki | 1987-03-24 |
| 4525103 | Method of fixation of anchoring bolts in boreholes | Frank Meyer, Hans Mehesch | 1985-06-25 |
| 4510180 | Method of coating geological formations as well as air- and fire barriers | Heinz Esser, Rudolf Schmidt | 1985-04-09 |
| 4497595 | Method of bonding roofbolt rods to boltholes | Frank Meyer, Hans Mehesch | 1985-02-05 |
| 4475847 | Process for consolidation and sealing of geological formations and artificial beds of rock, earth, and coal | Hans Mehesch, Frank Meyer, Rolf Kubens, Martin Winkelmann | 1984-10-09 |