| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 4 | |
| #2 | Switzerland | 4 | |
| #3 | Finland | 4 | |
| #4 | Germany | 3 | |
| #5 | United Kingdom | 3 | |
| #6 | Belgium | 1 | |
| #7 | Denmark | 1 | |
| #8 | Netherlands | 1 | |
| #9 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Materials and metallurgy | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Building materials | |
| #3 | General building constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Herbst D | 3 |
| #2 | Dieter Herbst | 3 |
| #3 | Herbst Dieter Dipl Ing | 3 |
| #4 | Dieter Herbst Dipl-Ing | 2 |
| #5 | Herbst Dieter | 1 |
| #6 | Herbst Dieter Dipl-Ing | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2039272A1 | Process for laying pipelines carrying a heated medium in deepened ground as well as insulating cladding to be used for this | |
| GB1015527A | Improvements in bearings for underground pipelines | |
| DE1450342A1 | Process for laying pipelines carrying a heated medium | |
| DE1450340A1 | Method for laying a pipeline carrying a heated medium |