| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Australia | 4 | |
| #3 | Canada | 4 | |
| #4 | Italy | 4 | |
| #5 | Sweden | 3 | |
| #6 | South Africa | 3 | |
| #7 | Germany | 2 | |
| #8 | France | 2 | |
| #9 | United Kingdom | 2 | |
| #10 | Japan | 2 | |
| #11 | New Zealand | 2 | |
| #12 | Brazil | 1 | |
| #13 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Machine tools | |
| #5 | Furniture and games | |
| #6 | Civil engineering | |
| #7 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Vehicle wheels | |
| #2 | Unspecified technologies | |
| #3 | Nails | |
| #4 | Dredging | |
| #5 | Turning | |
| #6 | Office furniture | |
| #7 | Harvesting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Demrick Carl J | 9 |
| #2 | Mccarroll Raymond A | 8 |
| #3 | Mccarroll R | 6 |
| #4 | Mccarroll R A | 3 |
| #5 | Demrich C J | 1 |
| #6 | Caruso Jerome C | 1 |
| #7 | Kaaru Jiee Demuritsuku | 1 |
| #8 | Den Herder P | 1 |
| #9 | Den Herder J | 1 |
| #10 | Perl Ludovic | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA1202456A | Split wheel caster | |
| US4447096A | Cabinet assembly system | |
| US4282629A | Socket for caster mounting | |
| ZA80944B | Dual wheel caster | |
| AU5488480A | Mounting of caster | |
| US4399586A | Dual wheel caster | |
| US4283810A | Dual wheel caster body structure | |
| US4213226A | Bushing and grease retainer for casters | |
| NZ187627A | Castor with tilted axle | |
| US4282628A | Tilted axle caster | |
| US4144617A | Tilted axle caster | |
| US3751887A | Devices for mechanically clearing waterways, particularly ditches |