Inventor · disambiguated record
John C. Spangler, Jr.
Also filed as: SPANGLER JOHN · SPANGLER JR JOHN C
4 granted patents·2 pending applications·30 citations·filing 2004–2014
74Inventor score
Top patents by PatentIndex Score
6 records- 0169US8682528B2Seat suspension system having fail-safe functionalityCONTRATTO MICHAEL S·Filed 2012·Granted Mar 25, 2014·8 cites·15 claims
- 0266US7975813B2Electromagnetic suspension system for a seat assembly and machine using sameCATERPILLAR INC·Filed 2007·Granted Jul 12, 2011·12 cites·17 claims
- 0351US7909404B2Independent height adjustment system for a seat assembly and machine using sameCATERPILLAR INC·Filed 2008·Granted Mar 22, 2011·4 cites·10 claims
- 0450US8376820B2Fender-accessible air filterCATERPILLAR INC·Filed 2004·Granted Feb 19, 2013·6 cites·13 claims
- 0538US2016176326A1Seat Suspension SystemCATERPILLAR INC·Filed 2014·Application pending·0 cites
- 0633US2013153320A1Adaptive seat suspension systemCONTRATTO MICHAEL S·Filed 2012·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when John C. Spangler, Jr. files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →