| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 8 | |
| #2 | Germany | 1 | |
| #3 | France | 1 | |
| #4 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Basic materials chemistry | |
| #3 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations | |
| #2 | Platform constructions | |
| #3 | Gas-turbine plants | |
| #4 | Construction of roads | |
| #5 | Materials for miscellaneous applications |
| # | Name | Total Patents |
|---|---|---|
| #1 | Claus Hermann | 8 |
| Publication | Filing date | Title |
|---|---|---|
| CH684102A5 | Method and apparatus for stabilizing roads on slopes. | |
| CH683434A5 | Secure fastening of roadway on side of mountain - involves vertical piles with gaps filled with railway sleepers and anchored cables extending under road surface into solid ground | |
| CH683355A5 | Lightweight acoustic structure. | |
| CH674531A5 | Peaty ground-stabilisation method - introduces alkaloid silicate solution with tenside followed by carbon di:oxide gas | |
| CH670271A5 | Stone supporting wall repair system - drills anchor bolt holes at recesses where stones butt together |