P

Inventor

VAN TURNHOUT JAN

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

MINNESOTA MINING & MFG

3 patents
US4588537AMay 13, 1986

Method for manufacturing an electret filter medium

MINNESOTA MINING & MFG358 citations95
US4749348AJun 7, 1988

Apparatus for manufacturing an electret filter medium

MINNESOTA MINING & MFG31 citations89
US4456648AJun 26, 1984

Particulate-modified electret fibers

MINNESOTA MINING & MFG30 citations86

VERTO NV

2 patents
US3998916ADec 21, 1976

Method for the manufacture of an electret fibrous filter

VERTO NV94 citations94
US4178157ADec 11, 1979

Method for manufacturing a filter of electrically charged electret fiber material and electret filters obtained according to said method

VERTO NV51 citations91

PHILIPS CORP

2 patents
US4016375AApr 5, 1977

Electret transducer

PHILIPS CORP14 citations73
US4037310AJul 26, 1977

Method of manufacturing a homopolar electret from a foil

PHILIPS CORP5 citations62

TNO

2 patents
US4363860ADec 14, 1982

Photoconductive polyimide coating upon a substrate

TNO3 citations59
US4355089AOct 19, 1982

Process for producing a photoconductive polyimide coating upon a substrate

TNO1 citations48

UNIV DELFT TECH

1 patent
US6044201AMar 28, 2000

Container with heat or cold dispensing material comprising hydrogel with crosslinked hydrophilic polymer

UNIV DELFT TECH15 citations73