| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Australia | 3 | |
| #3 | Canada | 3 | |
| #4 | EPO (European Patent Office) | 3 | |
| #5 | Norway | 3 | |
| #6 | United Kingdom | 2 | |
| #7 | France | 1 | |
| #8 | Japan | 1 | |
| #9 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Park Arthur | 23 |
| #2 | Wilson Bobby Talma | 9 |
| #3 | Wilson Bob T | 8 |
| #4 | Wilson Bobby T | 2 |
| #5 | Park Arthur Nmi | 1 |
| #6 | Wilson Bob Talma | 1 |
| #7 | Stuart Robert W | 1 |
| #8 | Wilsox Bob Talma | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4638872A | Core monitoring device | |
| US4598777A | Method and apparatus for preventing contamination of a coring sponge | |
| US4631677A | Method for determining the placement of perforations in a well casing | |
| US4479557A | Method and apparatus for reducing field filter cake on sponge cores | |
| US4502553A | Sponge coring apparatus with reinforced sponge | |
| US4312414A | Method and apparatus for obtaining saturation data from subterranean formations | |
| US2975849A | Core disintegrating drill bit |