| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 2 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Shafts | |
| #3 | Shafts | |
| #4 | Pistons and sealings | |
| #5 | Springs | |
| #6 | Dredging | |
| #7 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | A Wallers Richard | 5 |
| #2 | C Haspert John | 3 |
| #3 | Edward Tschirky John | 1 |
| #4 | Isaac Wohlfeld William | 1 |
| #5 | Cockrell Moore Stanley | 1 |
| #6 | Pope Garrison Erskine | 1 |
| #7 | Moak Rollins Henry | 1 |
| #8 | Arcadia Haspert John C | 1 |
| #9 | Mcgee Jerry V | 1 |
| #10 | Sherrod Bachman William | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1192571A | A Bearing | |
| US3413045A | Sealed lubricated reamer-stabilizer | |
| GB1057620A | Hydraulically actuated grab bucket | |
| DE1458619A1 | Hydraulic grab cage | |
| DE1459866A1 | Tunnel boring machine | |
| US3106271A | Grating clamp |