| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 4 | |
| #3 | Germany | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Sound-producing devices | |
| #3 | Unspecified technologies | |
| #4 | Generating mechanical vibrations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kleinschmidt Klaus | 7 |
| #2 | Junger Miguel C | 6 |
| #3 | Proudfoot David | 2 |
| #4 | Klaus Kleinschmidt | 1 |
| #5 | Proudfoot David W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4562901A | Sound absorptive structural block with sequenced cavities | |
| CA993800A | Sound absorbing structural block | |
| US3866001A | Structural block with septum | |
| US3262093A | Pressure compensated sonic transducer | |
| US3142034A | Elastic wave radiator and detector | |
| US2840179A | Sound-absorbing panels | |
| CA858312A | Sound absorptive structural block |