| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | United Kingdom | 3 | |
| #3 | Norway | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Measurement | |
| #4 | Machines | |
| #5 | Chemical engineering | |
| #6 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Springs | |
| #3 | Unspecified technologies | |
| #4 | Analysing materials | |
| #5 | Marine propulsion | |
| #6 | Measuring volume | |
| #7 | Pipe-line systems | |
| #8 | Separation | |
| #9 | Testing of structures |
| # | Name | Total Patents |
|---|---|---|
| #1 | Koos John D | 8 |
| #2 | Butler Bryan V | 3 |
| #3 | Ester Alan E | 2 |
| #4 | Jones Ray L | 1 |
| #5 | Berkhan Robert E | 1 |
| #6 | Raymont Jr John M | 1 |
| #7 | Carl John R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5394339A | Apparatus for analyzing oil well production fluid | |
| US5252005A | Cylinder rod fire protection system | |
| US5169265A | Passive fire protection system for marine risers | |
| US5158397A | Passive fire protective systems for articulating joints and flexible connections | |
| US4702105A | Snubbers and methods and apparatus for the in-place testing thereof | |
| US4322290A | Filter assembly | |
| US4140075A | Steering control system for ships |