| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | France | 12 | |
| #3 | United Kingdom | 12 | |
| #4 | Norway | 11 | |
| #5 | Germany | 9 | |
| #6 | Denmark | 9 | |
| #7 | Netherlands | 9 | |
| #8 | Canada | 7 | |
| #9 | Ireland | 5 | |
| #10 | Australia | 4 | |
| #11 | South Africa | 4 | |
| #12 | Brazil | 3 | |
| #13 | Mexico | 3 | |
| #14 | Spain | 2 | |
| #15 | India | 2 | |
| #16 | Iceland | 2 | |
| #17 | Italy | 2 | |
| #18 | Morocco | 2 | |
| #19 | New Zealand | 2 | |
| #20 | African Intellectual Property Organization | 2 | |
| #21 | Philippines | 2 | |
| #22 | Argentina | 1 | |
| #23 | Algeria | 1 | |
| #24 | Egypt | 1 | |
| #25 | Israel | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Digital networks | |
| #3 | Weapons | |
| #4 | Basic communication technologies | |
| #5 | Electrical machinery and energy | |
| #6 | Machines | |
| #7 | Mechanical elements | |
| #8 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Geophysics | |
| #2 | Digital information transmission | |
| #3 | Military vessels | |
| #4 | Resonators | |
| #5 | Installation of electric cables | |
| #6 | Generating mechanical vibrations | |
| #7 | Pipes | |
| #8 | Ships |
| # | Name | Total Patents |
|---|---|---|
| #1 | Benestad Otto | 25 |
| #2 | Brandsaeter Helge | 21 |
| #3 | Hatteland Kjell | 19 |
| #4 | Fredriksen Paul | 19 |
| #5 | Eimstad Olav | 13 |
| #6 | Dragsund Inge | 12 |
| #7 | Gjestrum Einar | 12 |
| #8 | Lien Eldar | 9 |
| #9 | Ommundsen Tor A | 9 |
| #10 | Snook Clive | 9 |
| Publication | Filing date | Title |
|---|---|---|
| GB8615436D0 | Digital signal processing device working with continuous bit streams | |
| GB8614650D0 | Method for processing data | |
| DE3532615A1 | ARRANGEMENT IN A HYDROPHONE | |
| IL76301D0 | Method for treating seismic data | |
| DK616884D0 | Device for use by maritime seismic investigation | |
| DK304984D0 | Power supply system for data collection devices | |
| US4594696A | Gun cable termination | |
| US4597065A | Cable for towing air/water guns behind a seismic vessel | |
| IE840431L | Data transmission system for seismic streamers | |
| GB2109935A | Towed seismic assembly | |
| IE821051L | Marine seismic surveys | |
| GB2087556A | Method and apparatus for use in marine seismic data gathering |