Inventor · disambiguated record
John A. Chapman
Also filed as: CHAPMAN JOHN · CHAPMAN JOHN A · CHAPMAN JOHN ALEX
13 granted patents·2 pending applications·319 citations·filing 1981–2015
93Inventor score
Top patents by PatentIndex Score
15 records- 0190US8763142B2Tokenized payment processing schemesMCGUIRE KEVIN M·Filed 2011·Granted Jun 24, 2014·30 cites·24 claims
- 0289US6131833ATracked drive tower for a self-propelled irrigation systemVALMONT INDUSTRIES·Filed 1998·Granted Oct 17, 2000·59 cites·20 claims
- 0389US5678771AChemical distribution systemVALMONT INDUSTRIES·Filed 1996·Granted Oct 21, 1997·61 cites·7 claims
- 0469US4434936AIrrigation systemVALMONT INDUSTRIES·Filed 1981·Granted Mar 6, 1984·25 cites·20 claims
- 0565US4729514AMeans for seeding through a center pivot irrigation systemVALMONT INDUSTRIES·Filed 1986·Granted Mar 8, 1988·34 cites·20 claims
- 0661US6095439ACorner irrigation system including a GPS guidance systemVALMONT INDUSTRIES·Filed 1998·Granted Aug 1, 2000·52 cites·6 claims
- 0748US4660775AMeans for seeding through a center pivot irrigation systemVALMONT INDUSTRIES·Filed 1985·Granted Apr 28, 1987·16 cites·4 claims
- 0848US2014366151A1Tokenized payment processing schemesMCGUIRE KEVIN M·Filed 2014·Application pending·0 cites
- 0947US5356080AWater inlet for a linear move irrigation systemVALMONT INDUSTRIES·Filed 1993·Granted Oct 18, 1994·11 cites·11 claims
- 1045US9625036B2Braking systemCATERPILLAR SARL·Filed 2014·Granted Apr 18, 2017·0 cites·22 claims
- 1144US6186423B1Irrigation systemFiled 1999·Granted Feb 13, 2001·11 cites·6 claims
- 1242US5265810AWater inlet for a linear move irrigation systemVALMONT INDUSTRIES·Filed 1991·Granted Nov 30, 1993·9 cites·3 claims
- 1340US10259434B2Braking system and method for machineCATERPILLAR SARL·Filed 2015·Granted Apr 16, 2019·0 cites·18 claims
- 1439US2015323070A1Braking systemCATERPILLAR SARL·Filed 2014·Application pending·0 cites
- 1537US4609147AWater delivery machine for an irrigation systemVALMONT INDUSTRIES·Filed 1984·Granted Sep 2, 1986·11 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →