Inventor · disambiguated record
Ralph Marquardt
Also filed as: MARQUARDT RALPH · MARQUARDT RALPH E
3 granted patents·3 pending applications·28 citations·filing 1979–2022
67Inventor score
Top patents by PatentIndex Score
6 records- 0172US6417385B1Method of producing acetone-cyanhydrinDEGUSSA·Filed 2000·Granted Jul 9, 2002·11 cites·10 claims
- 0260US2024294724A1Recovering di- and/or polyisocyanates from pu-depolymerisation processesEVONIK OPERATIONS GMBH·Filed 2022·Application pending·0 cites
- 0360US2024317674A1Hydrogenation of aromatic amines from pu decomposition processesEVONIK OPERATIONS GMBH·Filed 2022·Application pending·0 cites
- 0460US2024309207A1Production of pu foams using recycled polyolsEVONIK OPERATIONS GMBH·Filed 2022·Application pending·0 cites
- 0553US6838070B1Method of producing cyanuric chlorideDEGUSSA·Filed 2000·Granted Jan 4, 2005·1 cites·5 claims
- 0652US4335376AElectronic control deviceMARQUARDT RALPH E·Filed 1979·Granted Jun 15, 1982·16 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →