Inventor

SIEPMANN FRIEDRICH W

DE4 patents

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

SIEPMANN FRIEDRICH W

2 patents

US5324666AJun 28, 1994

Process for determining oxidizable substances contained in an aqueous sample liquid

SIEPMANN FRIEDRICH W26 citations86

US4898829AFeb 6, 1990

Apparatus for the detection of biodegradable and toxic substances in aqueous solutions

SIEPMANN FRIEDRICH W9 citations67

CONDUCTA ENDRESS & HAUSER

1 patent

US7330262B2Feb 12, 2008

Methods and apparatus for determining the content materials of a liquid employing a piston movable within a measuring chamber

CONDUCTA ENDRESS & HAUSER14 citations79

ISCO INC

1 patent

US6114172ASep 5, 2000

Process and device for determining the biological oxygen demand of sewage

ISCO INC11 citations69