| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 2 | |
| #3 | Germany | 2 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Consumer goods | |
| #3 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Loudspeakers and microphones | |
| #2 | Hand carried bags | |
| #3 | Paper goods | |
| #4 | Hats |
| # | Name | Total Patents |
|---|---|---|
| #1 | Burch George B | 9 |
| #2 | Leslie Stevens | 4 |
| #3 | Durch George B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2411066A | Manufacture of deposited paper products | |
| GB274801A | Improvements in sound reproducing apparatus | |
| US1644795A | Sound amplifier | |
| US1669266A | Container and method of making same | |
| US1414801A | Acoustic device | |
| US1414802A | Phonograph | |
| US1414804A | Phonograph | |
| US1454504A | Phonograph | |
| US1414803A | Phonograph reproducer | |
| US1671509A | Electric phonograph | |
| US1506160A | Phonograph | |
| US1671508A | Electric phonograph | |
| US1392605A | Hat-shaping apparatus | |
| CA197843A | Acoustic device | |
| CA197842A | Phonograph |