Inventor
VON HAGEN INGO
DE21 patents
⚠️ This page may combine multiple inventors who share the name “VON HAGEN INGO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MANNESMANN AG
19 patentsUS5832985ANov 10, 1998
Process and device for producing a steel strip with the properties of a cold-rolled product
MANNESMANN AG39 citations89
US5370751ADec 6, 1994
Hot rolled and air hardened steel for manufacturing structural tubes and method thereof
MANNESMANN AG24 citations88
US6435218B2Aug 20, 2002
Pipe with crack stopper feature, and process of protecting a pipe against propagation of cracks
MANNESMANN AG21 citations87
US5855238AJan 5, 1999
Process and device for the continuous production of sheet metal strips
MANNESMANN AG10 citations74
US5256219AOct 26, 1993
Steel reinforcement tube
MANNESMANN AG13 citations70
US5019180AMay 28, 1991
Method of manufacturing of high-strength seamless steel tubes
MANNESMANN AG7 citations68
US4631095ADec 23, 1986
Steel that is exposed to hydrogen sulfide
MANNESMANN AG9 citations66
US5122198AJun 16, 1992
Method of improving the resistance of articles of steel to H-induced stress-corrosion cracking
MANNESMANN AG15 citations64
US5030297AJul 9, 1991
Process for the manufacture of seamless pressure vessels and its named product
MANNESMANN AG6 citations61
US5992501ANov 30, 1999
Floor lead-through element for an inversion casting vessel
MANNESMANN AG3 citations60
US5850869ADec 22, 1998
Inversion casting device with crystallizer
MANNESMANN AG4 citations60
US5722151AMar 3, 1998
Process for making semi-finished products
MANNESMANN AG5 citations60
US4900376AFeb 13, 1990
Hardening a cylindrical hollow object preferably made of steel
MANNESMANN AG2 citations60
US5832984ANov 10, 1998
Method of producing long steel products
MANNESMANN AG2 citations58
US5573605ANov 12, 1996
High-temperature steel for boiler making
MANNESMANN AG6 citations58
US6153028ANov 28, 2000
Process and device for producing thin metal bars
MANNESMANN AG3 citations57
US6095232AAug 1, 2000
Process and device for producing metallic composite materials
MANNESMANN AG3 citations53
US5881441AMar 16, 1999
Device for making semi-finished products
MANNESMANN AG1 citations49
US5462615AOct 31, 1995
Weldable high-strength structural steel with 13% chromium
MANNESMANN AG1 citations40