| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 4 | |
| #2 | United States | 4 | |
| #3 | Germany | 2 | |
| #4 | France | 2 | |
| #5 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Unspecified technologies | |
| #3 | Structural elements | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kemp William G | 6 |
| #2 | Barnett Richard G | 2 |
| #3 | Kemp William George | 1 |
| #4 | George Kemp William | 1 |
| #5 | George Stamford Kemp William | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3380206A | Lay-in acoustical ceiling panel with flexible diaphragms | |
| FR1358271A | Soundproof ceiling | |
| GB996225A | Improvements in or relating to acoustical ceiling structures | |
| FR1350377A | Soundproof panel | |
| GB991947A | Improvements in or relating to acoustical ceiling structures and acoustical panels for installation in acoustical ceiling structures | |
| US3095943A | Acoustical structure | |
| US3195700A | Expansible acoustical system | |
| US3241282A | Acoustical system | |
| CA809019A | Lay-in acoustical ceiling panel | |
| CA662757A | Reinforced acoustical unit | |
| CA703648A | Acoustical structure | |
| CA724983A | Acoustical system |