Inventor · disambiguated record
Douglas L. Manchester
Also filed as: MANCHESTER DOUGLAS · MANCHESTER DOUGLAS L
6 granted patents·1 pending application·384 citations·filing 1981–2014
84Inventor score
Top patents by PatentIndex Score
7 records- 0194US7898413B2Anti-tamper protected enclosureVERIFONE INC·Filed 2007·Granted Mar 1, 2011·116 cites·20 claims
- 0292US6588660B1Passive contactless smartcard security systemHEWLETT PACKARD DEVELOPMENT CO·Filed 2000·Granted Jul 8, 2003·252 cites·45 claims
- 0377US8621235B2Secure pin entry deviceBARROWMAN JOHN HENRY·Filed 2011·Granted Dec 31, 2013·6 cites·15 claims
- 0464US8954750B2Secure PIN entry deviceVERIFONE INC·Filed 2013·Granted Feb 10, 2015·1 cites·15 claims
- 0557US9792803B2Secure PIN entry deviceVERIFONE INC·Filed 2014·Granted Oct 17, 2017·0 cites·19 claims
- 0654USD272355SData transmission multiplexer control panelHALCYON INC·Filed 1981·Granted Jan 24, 1984·9 cites·1 claims
- 0744US2011122563A1Anti-tamper protected enclosureVERIFONE INC·Filed 2011·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →