Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David John Buttle — 16 Patents

APAea Technology Plc: 5 patents #1 of 68Top 2%
TPThe Boots Company Plc: 2 patents #23 of 152Top 20%
GE: 2 patents #13,632 of 36,430Top 40%
BLBaker Hughes Energy Technology Uk Limited: 1 patents #18 of 89Top 25%
TSThe University Of Sheffield: 1 patents #43 of 262Top 20%
Wantage, GB: #6 of 106 inventorsTop 6%
Overall (All Time): #284,196 of 4,157,543Top 7%
16 Patents All Time
David John Buttle has been granted 16 US patents while listed as an inventor at Aea Technology Plc. The first was granted in 1992 and the most recent in June 2022. David John Buttle ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list David John Buttle in Wantage, GB.

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11360050 Hoses, and detecting failures in reinforced hoses John C. McCarthy 2022-06-14
10765779 Medical implant Aileen Crawford-Corrie, John Haycock 2020-09-08
9851265 Apparatus and method for measuring properties of a ferromagnetic material 2017-12-26 $17,054,000
9249657 System and method for monitoring a subsea well Pekka Tapani Sipilä{umlaut over ( )}, Nicholas Josep Ellson, John C. McCarthy, Sakethraman Mahalingam 2016-02-02 $20,555,000
8316726 Biaxial stress management John C. McCarthy 2012-11-27
7876096 Detecting failures in flexible multistrand steel structures William J. Dalzell 2011-01-25
7268541 Detecting failures of flexible multistrand steel structures William J. Dalzell, Peter John Thayer, Stephen Frank Burch, Geoffrey Charles Eckold 2007-09-11
7215117 Measurement with a magnetic field 2007-05-08
7053606 Measurement of residual and thermally-induced stress in a rail William J. Dalzell, Peter John Thayer 2006-05-30
6964202 Detection of rolling contact fatigue Peter John Thayer, William J. Dalzell 2005-11-15
6854336 Measurement of stress in a ferromagnetic material 2005-02-15
6850055 Measurement of the variation of a material property with depth in a ferromagnetic material 2005-02-01
5828211 Determining stress in ferromagnetic materials from measurements of magnetic anisotropy and magnetic permeability Christopher Brian Scruby, Fiona Anne Ravenscroft, Carlo Guido de Michelis, Massimo Gori, Giampiero Antonelli 1998-10-27
5468480 Pharmaceutical composition of purified chymopapain Alan Barrett, Daniel H. Rich 1995-11-21
5380656 Chymopapain and method of purifying it on an inhibitory dipeptide affinity column Alan Barrett, Daniel H. Rich 1995-01-10
5106621 Cysteine proteinases, production and use Andrew D. Rowan 1992-04-21