Inventor

HIETALA PENTTI

FI5 patents

⚠️ This page may combine multiple inventors who share the name “HIETALA PENTTI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MADAUS AG

2 patents

US5393898AFeb 28, 1995

Method of preparing diacetyl rhein

MADAUS AG15 citations70

US5710260AJan 20, 1998

Method of extracting sennosides A, B and A1

MADAUS AG1 citations48

MADAUS & CO DR

1 patent

US4595592AJun 17, 1986

Process for obtaining laxative compounds from senna drugs

MADAUS & CO DR15 citations69

EXTRACTA LTD

1 patent

US6203835B1Mar 20, 2001

Use of hydroxy acid or a product containing the same in animal feed

EXTRACTA LTD13 citations60

MEDIDOM LAB

1 patent

US6596764B1Jul 22, 2003

Method of preparing diacetyl rhein

MEDIDOM LAB0 citations48