John Frayn Ewans

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High Wycombe, Buckinghamshire HP12 3AW, GB

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Patents Grantslast 30 patents

Information Patent Grant
Rowing shoes
- Patent number 8,458,926
- Issue date Jun 11, 2013
- John Frayn Ewans
- A43 - FOOTWEAR
Information Patent Grant
Rowing- and sculling-boat electric-switch operation
- Patent number 7,452,252
- Issue date Nov 18, 2008
- John Frayn Ewans
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Rigger-spread measuring instruments
- Patent number 6,973,739
- Issue date Dec 13, 2005
- John Frayn Ewans
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
ROWING SHOES
- Publication number 20100325920
- Publication date Dec 30, 2010
- John Frayn EWANS
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Application
ROWING-BOAT GAUGES
- Publication number 20100319205
- Publication date Dec 23, 2010
- John Frayn EWANS
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Application
Rowing-and sculling-boat electric-switch operation
- Publication number 20060292940
- Publication date Dec 28, 2006
- John Frayn Ewans
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT