| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 5 | |
| #2 | United States | 4 | |
| #3 | Australia | 2 | |
| #4 | Canada | 2 | |
| #5 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Consumer goods | |
| #3 | Telecommunications | |
| #4 | Mechanical elements | |
| #5 | Measurement | |
| #6 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Sound-producing devices | |
| #2 | Loudspeakers and microphones | |
| #3 | Secret communication | |
| #4 | Stereophonic systems | |
| #5 | Springs | |
| #6 | Measuring electric variables | |
| #7 | Diagnosis and surgery |
| # | Name | Total Patents |
|---|---|---|
| #1 | Horrall Thomas R | 11 |
| #2 | Heine John C | 5 |
| #3 | Zapfe Jeffrey A | 3 |
| #4 | Kaufman Marc J | 1 |
| #5 | Frederick Blaise B | 1 |
| #6 | Ungar Eric E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2008137003A1 | Acoustic noise attenuation system for mri scanning | |
| US2003219133A1 | Sound masking system | |
| WO03037035A1 | Sound masking system | |
| WO0216797A1 | Noise cancellation using a mechanical oscillator | |
| US6888945B2 | Personal sound masking system | |
| US6188771B1 | Personal sound masking system |