| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | China | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Canada | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Textiles and paper | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Loudspeakers and microphones | |
| #2 | Stereophonic systems | |
| #3 | Mechanical treatment of natural fibrous | |
| #4 | Unspecified technologies | |
| #5 | Advertising |
| # | Name | Total Patents |
|---|---|---|
| #1 | Collins William E | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US2015312693A1 | Phase-unified loudspeakers: series crossovers | |
| US2014219480A1 | Phase-unified loudspeakers: parallel crossovers | |
| US2011176701A1 | Autoaugmented Speaker Port | |
| US1412167A | Regin for cotton and other fibrous material | |
| US1105024A | Box-fastener. |