| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Japan | 6 | |
| #3 | Germany | 4 | |
| #4 | Spain | 4 | |
| #5 | France | 4 | |
| #6 | United Kingdom | 3 | |
| #7 | Belgium | 1 | |
| #8 | Brazil | 1 | |
| #9 | Canada | 1 | |
| #10 | Finland | 1 | |
| #11 | Italy | 1 | |
| #12 | Netherlands | 1 | |
| #13 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Environmental technology | |
| #3 | Mechanical elements | |
| #4 | Machines | |
| #5 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Hydraulic engineering | |
| #2 | Climate change adaptation technologies | |
| #3 | Springs | |
| #4 | Unspecified technologies | |
| #5 | Earth drilling | |
| #6 | Foundations and excavations | |
| #7 | Pipes | |
| #8 | Ships | |
| #9 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Thomerson Clarence T | 11 |
| #2 | Thomerson Clarence | 5 |
| #3 | Waldrop Tom C | 5 |
| #4 | Files James Harold | 4 |
| #5 | Jieimuzu Hararudo Fuairuzu | 3 |
| #6 | Thomerson C | 3 |
| #7 | Kuraransu Teii Suamasun | 3 |
| #8 | Montague John M | 3 |
| #9 | Mayfield Windel O | 3 |
| #10 | Jian Mirutan Monteigiyu | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US4266578A | Drill pipe protector | |
| US4273473A | Shock absorbing column | |
| US4142371A | Removable closure apparatus for hollow columnar members | |
| US4109474A | Bumper assembly shock cell system | |
| US4098211A | Bumper rings | |
| US4024723A | Platform leg diaphragm | |
| US4047391A | Grout seal | |
| US4005672A | Bumper with cushion pivot at bottom | |
| US3991582A | Rotating-bumper fender system | |
| US3861158A | Submerged pipeline stabilization |