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USPTO Patent Rankings Data through Dec 31, 2025
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Alan E. Bickerstaff — 3 Patents

Xerox: 3 patents #3,111 of 8,622Top 40%
London, GB: #2,677 of 11,041 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Alan E. Bickerstaff has been granted 3 US patents while listed as an inventor at Xerox. The first was granted in 1985 and the most recent in February 1990. Alan E. Bickerstaff ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Alan E. Bickerstaff in London, GB.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4905049 Toner fusing apparatus Barry J. Collier, Joseph F. Hale, Peter M. Hitchmough, Ian Pitts, Ghulam Rasul 1990-02-27 $3,276,000
4870446 Apparatus for dispensing release oil in an image fuser Barry J. Collier, Joseph F. Hale, Peter M. Hitchmough, Ian Pitts, Ghulam Rasul +4 more 1989-09-26 $3,500,000
4536076 Apparatus for supplying a liquid to a heated surface Austin H. Cotton, Michael G. Ladell, David Martyn Neale 1985-08-20 $2,461,000