| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | United Kingdom | 7 | |
| #3 | Australia | 6 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Furniture and games | |
| #3 | Mechanical elements | |
| #4 | Machines | |
| #5 | Measurement | |
| #6 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Coin-freed | |
| #2 | Games | |
| #3 | Venting or aerating devices | |
| #4 | Money sorting | |
| #5 | Unspecified technologies | |
| #6 | Pumps | |
| #7 | Measuring volume | |
| #8 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hagiwara Takashi | 13 |
| #2 | Manabe Katsuki | 9 |
| #3 | Spencer Larry K | 5 |
| #4 | Vanlangendonck Robert | 1 |
| #5 | Wilson Clyde D | 1 |
| #6 | Spencer Larry Keith | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5013218A | Submersible pneumatic pump for water table | |
| GB8726643D0 | Roulette playing device | |
| US4869505A | Roulette playing device | |
| US4768373A | Corrosion and erosion sensor | |
| US4645431A | Hydraulic pumping apparatus and method of operation | |
| AU4066185A | Slot machine | |
| WO8605407A1 | Slot machine | |
| AU4065985A | Slot machine | |
| WO8605113A1 | Slot machine | |
| US4643228A | Convertible high or low pressure pilot valve | |
| GB8334376D0 | Optoelectronic coin entry sensing system for coin operated machines | |
| US4565275A | Optoelectronic coin entry sensing system for coin operated machines | |
| AU2008283A | Multiline slot machine | |
| GB2009888A | Shut-off valve | |
| US3610284A | Fluid control device |