Inventor · disambiguated record
Ayyappan Ponnaiyan
Also filed as: PONNAIYAN AYYAPPAN
4 granted patents·5 citations·filing 2018–2021
64Inventor score
Files withDEERE & CO4
Top patents by PatentIndex Score
4 records- 0180US11187127B2Exhaust gas treatment system and method with four-way catalyzed filter elementDEERE & CO·Filed 2019·Granted Nov 30, 2021·2 cites·19 claims
- 0274US10767532B2Exhaust gas treatment system and method having improved low temperature performanceDEERE & CO·Filed 2018·Granted Sep 8, 2020·1 cites·19 claims
- 0374US10718245B2Exhaust gas treatment system and method having improved low temperature performanceDEERE & CO·Filed 2018·Granted Jul 21, 2020·2 cites·16 claims
- 0466US11668221B2Exhaust gas treatment system and method with four-way catalyzed filter elementDEERE & CO·Filed 2021·Granted Jun 6, 2023·0 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →