David J. Roth

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Downingtown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and installation for removing slag from metallurgical melts
- Patent number 11,926,879
- Issue date Mar 12, 2024
- RIA Cast House Enginering GmbH
- David Roth
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Dross compression apparatus including a cooling system for cooling...
- Patent number 7,157,042
- Issue date Jan 2, 2007
- Altek-MDY, L.L.C.
- David J. Roth
- C21 - METALLURGY OF IRON
Information Patent Grant
Portable dross press with rising and dumping pot
- Patent number 6,228,319
- Issue date May 8, 2001
- Altek International, Inc.
- David J. Roth
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Dross compression apparatus and method utilizing ribs on collector...
- Patent number 5,669,957
- Issue date Sep 23, 1997
- Altek International, Inc.
- David J. Roth
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Dross compression apparatus
- Patent number 5,397,104
- Issue date Mar 14, 1995
- Altek International
- David Roth
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Method and installation for removing slag from metallurgical melts
- Publication number 20220127688
- Publication date Apr 28, 2022
- RIA Cast House Engineering GmbH
- David ROTH
- B22 - CASTING POWDER METALLURGY
Information Patent Application
PROCESS FOR INCREASING DROSS RECOVERIES
- Publication number 20110083532
- Publication date Apr 14, 2011
- ALTEK, L.L.C.
- David J. Roth
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
DROSS COMPRESSION APPARATUS INCLUDING A COOLING SYSTEM FOR COOLING...
- Publication number 20070102853
- Publication date May 10, 2007
- David J. Roth
- C21 - METALLURGY OF IRON
Information Patent Application
Dross compression apparatus including a cooling system for cooling...
- Publication number 20050098930
- Publication date May 12, 2005
- David J. Roth
- C21 - METALLURGY OF IRON
Information Patent Application
Refractory head with optional spike for dross press
- Publication number 20010011788
- Publication date Aug 9, 2001
- Altek International, Inc.
- David J. Roth
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...