| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | France | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | Japan | 3 | |
| #5 | Netherlands | 3 | |
| #6 | Norway | 2 | |
| #7 | Austria | 1 | |
| #8 | Australia | 1 | |
| #9 | Canada | 1 | |
| #10 | Germany | 1 | |
| #11 | Italy | 1 | |
| #12 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Engines, pumps and turbines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Machines for liquids | |
| #4 | Pistons and sealings | |
| #5 | Pumps | |
| #6 | Shafts | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fox Fred K | 12 |
| #2 | Fox Fred Kerwin | 4 |
| #3 | Furetsudo Kaauin Fuotsukusu | 2 |
| #4 | Fox F K | 2 |
| #5 | Kimberlin Denver K | 2 |
| #6 | Nixon Jeddy D | 1 |
| #7 | Furetsudo Kei Fuotsukusu | 1 |
| #8 | Tomek Martin L | 1 |
| #9 | Gray Kenneth | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4886432A | Bladder pump assembly | |
| AU3316689A | Bale turner | |
| US4466777A | Pump control circuit | |
| GB2055927A | Wellbore drilling tool | |
| US4308927A | Well drilling tool | |
| US4260032A | Well drilling tool | |
| US4260167A | Well drilling tool | |
| US4260030A | Well tool | |
| US4256189A | Well drilling tool | |
| US4284149A | Well drilling tool | |
| US4160551A | Seal assembly | |
| US4019591A | Well drilling tool | |
| US4019592A | By-pass tool | |
| US3997009A | Well drilling apparatus | |
| US3971450A | Well drilling tool |