| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Measurement | |
| #3 | Machine tools | |
| #4 | Machines | |
| #5 | Medical technology | |
| #6 | Mechanical elements | |
| #7 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Turning | |
| #4 | Syringes | |
| #5 | Gearing | |
| #6 | Measuring force, work and fluid pressure | |
| #7 | Testing of structures | |
| #8 | Vehicle transmission mounting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Akkerman Neil H | 12 |
| #2 | Barton John A | 4 |
| #3 | Barton John | 4 |
| #4 | Dewey Daniel O | 2 |
| #5 | Aber Greg S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2017030168A1 | Top-down fracturing system | |
| US2012152521A1 | Disconnect assembly for cylindrical members | |
| US2012089225A1 | High efficiency blood pump | |
| US2010126295A1 | Sequential gear shifting mechanism | |
| US2005223786A1 | System for mounting an engine to a frame | |
| US4488595A | Well tool having a slip assembly |