Inventor · disambiguated record
Ivan Helfert
Also filed as: HELFERT IVAN
2 granted patents·3 citations·filing 1987–1992
43Inventor score
Technology areasA61P
Top patents by PatentIndex Score
2 records- 0125US5424456AN-arylalkylderivatives of 2-aminomethyl-2,3-dihydro-1,4-benzodioxine and the process of preparation thereofVYZK USTAV FARM BIOCHEM SP·Filed 1992·Granted Jun 13, 1995·2 cites·1 claims
- 0224US4847403A2-Isopropyl-2-(2-methylphenyl)-5-(N-methyl-N-homoveratrylamino)-valeronitrile and method for producing sameSPOFA VEREINIGTE PHARMA WERKE·Filed 1987·Granted Jul 11, 1989·1 cites·8 claims
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