| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 5 | |
| #2 | WIPO (World Intellectual Property Organization) | 5 | |
| #3 | United States | 2 | |
| #4 | Canada | 1 | |
| #5 | EAPO (Eurasian Patent Organization) | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Russian Federation | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Civil engineering | |
| #3 | Machine tools | |
| #4 | Engines, pumps and turbines | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Dynamo-electric machines | |
| #2 | Earth drilling | |
| #3 | Percussive tools | |
| #4 | Pistons and sealings | |
| #5 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hestevik Svein | 8 |
| #2 | Brennvall Jon Eirik | 5 |
| #3 | Dahl-Jacobsen André | 2 |
| #4 | Brennvall Jon Erik | 2 |
| #5 | Nilsen Robert | 2 |
| #6 | He Yongqing | 2 |
| #7 | Nil Ssen Robert | 1 |
| #8 | Brennvall Jon Ehjrik | 1 |
| #9 | Nilssen Robert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2016167666A1 | Improved oil recovery by pressure pulses | |
| NO20160405A1 | Improved oil recovery supported by pressure pulses | |
| NO20150816A1 | A percussion drilling hammer assembly and method for enhanced lateral chipping in deep hole drilling | |
| NO20150341A1 | Percussive hammering assembly | |
| WO2015093974A1 | Reciprocating device with ferrofluid-lubricated sealing | |
| WO2007102742A1 | Reciprocating electric machine |