| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | United Kingdom | 4 | |
| #3 | Austria | 1 | |
| #4 | Canada | 1 | |
| #5 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Electrical machinery and energy | |
| #3 | Mechanical elements | |
| #4 | Packaging and shipping | |
| #5 | Machines | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Chairs and beds | |
| #2 | Electric switches | |
| #3 | Office furniture | |
| #4 | Nails | |
| #5 | General building constructions | |
| #6 | Containers for goods storage | |
| #7 | Devices for public amusement | |
| #8 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Propst Robert L | 7 |
| Publication | Filing date | Title |
|---|---|---|
| GB839660A | A connector set for connecting two members and connections made thereby | |
| US2846737A | Joint connection | |
| US2827952A | Cushion construction | |
| GB838224A | Detachable joint connection for use with knock-down units | |
| US2848231A | Merry-go-round for playgrounds and the like | |
| US2877519A | Detachable joint connection for use with knock-down units | |
| US2804129A | Cushion construction | |
| CA554864A | Cushion construction |