P

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 patents
US5832985ANov 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

SMS DEMAG AG

1 patent

MANNESMANNUFER AKTIENGESELLSCH

1 patent