William Michael Duff

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Lynmouth, NZ

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Patents Grantslast 30 patents

Information Patent Grant
Exhaust valves for pressurised fluid operated devices
- Patent number 12,365,070
- Issue date Jul 22, 2025
- GlobalForce IP Limited
- Ian Craig Paterson
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Sliding spool valves, and methods therefor
- Patent number 12,222,040
- Issue date Feb 11, 2025
- Globalforce IP Limited
- William Michael Duff
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
IMPROVEMENTS IN, OR RELATING TO, EXHAUST VALVES FOR PRESSURISED FLU...
- Publication number 20230078504
- Publication date Mar 16, 2023
- Globalforce IP Limited
- Ian Craig Paterson
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
IMPROVEMENTS IN, OR RELATING TO, TRIGGER VALVES FOR PRESSURISED FLU...
- Publication number 20230065490
- Publication date Mar 2, 2023
- Globalforce IP Limited
- Ian Craig Paterson
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
IMPROVEMENTS IN, OR RELATING TO, SLIDING SPOOL VALVES, AND METHODS...
- Publication number 20220390024
- Publication date Dec 8, 2022
- Globalforce IP Limited
- William Michael Duff
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...