| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 2 | |
| #2 | Germany | 2 | |
| #3 | United States | 2 | |
| #4 | Australia | 1 | |
| #5 | Brazil | 1 | |
| #6 | Denmark | 1 | |
| #7 | Finland | 1 | |
| #8 | France | 1 | |
| #9 | United Kingdom | 1 | |
| #10 | Italy | 1 | |
| #11 | Netherlands | 1 | |
| #12 | Norway | 1 | |
| #13 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Consumer goods | |
| #3 | Surface technology and coating | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Sound-producing devices | |
| #3 | Layered products | |
| #4 | Springs | |
| #5 | Finishing work on buildings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hagbjer Gunnar | 8 |
| #2 | Sylwan Odd | 3 |
| #3 | Hagbjer G | 2 |
| #4 | Hagbjer Gunnar I | 2 |
| #5 | Sylwan Odd B | 2 |
| #6 | Sylwan Odd Dipl Ing | 1 |
| #7 | Sylvan O | 1 |
| #8 | Sylwan O | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4338758A | Vibration damped structures and objects | |
| US4195713A | Sandwich structures with partial damping layers | |
| AU3559178A | Vibration damping by decoupling | |
| DE2819123A1 | Structural vibration damper for pump or turbine - uses viscous elastic material in drillings in rigid component vibrating with structure | |
| CA1088963A | Vibration damped structures and objects | |
| NL7506215A | Vibration damping construction. |