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USPTO Patent Rankings Data through Dec 31, 2025
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David J. Ensor — 5 Patents

FPFisher & Paykel: 4 patents #23 of 119Top 20%
Auckland, NZ: #444 of 2,317 inventorsTop 20%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
David J. Ensor has been granted 5 US patents while listed as an inventor at Fisher & Paykel. The first was granted in 1993 and the most recent in August 2000. David J. Ensor ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list David J. Ensor in Auckland, NZ.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6111508 Warning device Grant David Law, John Bryce Stothers 2000-08-29
5398298 Acceleration controller for laundry machine motor 1995-03-14
5341452 Electronic controls for electric motors, laundry machines including such controls and motors and/or methods of operating said controls 1994-08-23
5271116 Laundry machines and/or methods of controlling the same John J. A. Williams, Frank W. Shacklock 1993-12-21
5208931 Laudry machines and/or methods of controlling the same John J. A. Williams, Frank W. Shacklock 1993-05-11