| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | Australia | 1 | |
| #3 | Brazil | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Finland | 1 | |
| #6 | Norway | 1 | |
| #7 | African Intellectual Property Organization | 1 | |
| #8 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #9 | United States | 1 | |
| #10 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Treitz Siegfried | 13 |
| Publication | Filing date | Title |
|---|---|---|
| DE19640883A1 | Composite pipe for boring rod of rock drill | |
| DE19630639A1 | Mining device for drilling | |
| DE4103215A1 | Mining drill bit - has detachable head with pins secured in drill holes secured by transverse pins | |
| DE4032066A1 | Arrangement and fastening of pin-shaped cutting inserts in rock drill bits | |
| DE3510048C1 | Hammer drill bit for rock drilling machines |