Patent applications were not always proceeded with, either because examiners found prior invention or because the hoped for market was not eventuating and sometimes because filing is a way of establishing a date of invention as protection against claims by others.
“A Method of Milling Timber”
NZ 191339, 17 August 1979.
NZ 195543, 13 April 1980
NZ patent granted 12 February 1982 (195543)
Tipping blade system using a single circular saw rotating through 90degrees about its edge, cutting horizontally on the outstroke, vertically on the return.
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NZ Patent application made for a self-launching and retrieval system for bird scaring kites.
Date unknown, 1980’s?
Filed to establish priority.
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Patent application made in 1997 to Nederlandsch Octrooribureaux for a “Monoboard Kitesailer”
Claimed improved steering by fore and aft rudders rotating in opposite directions.
Not proceeded with because sales failed to eventuate.
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“An Improved Kite”
NZ 330489, 19 May 1998
NZ 332467, 21 October 1998
PCT NZ99/00060
British Application No 0030977.3
British Patent GB 2 335 210 B 19 March 2003
“C Quad” single skin 2 and 4 line traction kite with small diameter flexible fibreglass or carbon rod stiffening in leading edge and spines.
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“Ram Air Inflated Wing with Reduced Bridling”
NZ 502790, 10 February 2000
PCT NZ01/00019
European Application No 01908499.5
US Patent US 6,837,463 B2
“Arc” style 2 and 4 line ram air inflated traction kites with bridling only to wingtips.
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“Traction Kite Design”
NZ 510825 29 March 2001
PCT NZ02/0054
US Patent US 7,014,149, March 21, 2006
European Application No 02774080.2
European Patent 1385739, 13 August 2008
Concave leading edge improvement for Arc kites
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“A Kite”
NZ 528497, 7 August 2003
PCT NZ04/00178, 7 August 2003
Single line ram air inflated kite of square or rectangular (flag) shape, sometimes very large.
Filed to establish priority.
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“Multiple Element Ski and Sled with Multiple Element Skis”
NZ 541684, 5 August 2005
Kite powered sleds for snow and ice that steer by bending runners laterally so as to reduce friction during turns.
Market failed to eventuate.
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“Kites and other Aerodynamic Forms, Methods, Systems and Accessories Relating to Kites and Other Aerodynamic Forms”
NZ 577010 14 May 2010
PCT NZ2010/000092
System for launching single line kites on open water while boat towing. Is the basis of kites-on-water shows.
Filed to establish priority
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“A Movable Irrigator”
PCT NZ2015/050201 30 November 2015, priority date 02 December 2014
Downforce wings for travelling irrigators to resist overturning in strong winds.
Proceeded to patent in New Zealand and China
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