P

Inventor

GRAFF ALFRED

DE10 patents
⚠️ This page may combine multiple inventors who share the name “GRAFF ALFRED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MANNESMANN AG

4 patents
US5148414ASep 15, 1992

Electrodynamic ultrasonic transducer

MANNESMANN AG35 citations90
US5050703ASep 24, 1991

Electrodynamic transducer head

MANNESMANN AG40 citations90
US5421203AJun 6, 1995

Modifiable electrodynamic ultrasonic transducer

MANNESMANN AG23 citations89
US5164921ANov 17, 1992

Electrodynamic permanent magnet transducer

MANNESMANN AG38 citations88

MANNESMANN ROEHREN WERKE AG

2 patents
US6843131B2Jan 18, 2005

Method of detecting discontinuities on elongated workpieces

MANNESMANN ROEHREN WERKE AG52 citations94
US6931931B2Aug 23, 2005

Device for ultrasonic weld seam testing of longitudinally welded pipes for longitudinal and transversal errors

MANNESMANN ROEHREN WERKE AG126 citations91

V&M DEUTSCHLAND GMBH

1 patent
US8344725B2Jan 1, 2013

Device for nondestructive testing of pipes

V&M DEUTSCHLAND GMBH9 citations78

GRAFF ALFRED

1 patent
US8756999B2Jun 24, 2014

Ultrasonic probe

GRAFF ALFRED7 citations71

KOKA ASHRAF

1 patent
US9322805B2Apr 26, 2016

Leakage flux probe for non-destructive leakage flux-testing of bodies consisting of magnetisable material

KOKA ASHRAF6 citations57

MANNESMANN FUCHS ROHR GMBH

1 patent
US7861591B2Jan 4, 2011

Device for the ultrasonic inspection of the weld seam of longitudinally welded pipes for defects

MANNESMANN FUCHS ROHR GMBH6 citations46