Fruehan; Richard J.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Fruehan; Richard J..The latest application filed is for "use of alumina-carbon agglomerates in the carbothermic production of aluminum".

Company Profile

0.6.4

Fruehan; Richard J. - Murrysville PA
Fruehan; Richard J. - Franklin Township Westmoreland County

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Use of alumina-carbon agglomerates in the carbothermic production of aluminum Grant 7,819,937 - Fruehan , et al. October 26, 2	2010-10-26
Use of alumina-carbon agglomerates in the carbothermic production of aluminum Grant 7,753,988 - Fruehan , et al. July 13, 2	2010-07-13
Use Of Alumina-carbon Agglomerates In The Carbothermic Production Of Aluminum App 20100107815 - Fruehan; Richard J. ; et al.	2010-05-06
Low carbon aluminum production method using single furnace carbothermic reduction operated in batch mode Grant 7,556,667 - Fruehan July 7, 2	2009-07-07
Use Of Alumina-carbon Agglomerates In The Carbothermic Production Of Aluminum App 20090013823 - Fruehan; Richard J. ; et al.	2009-01-15
Low Carbon Aluminum Production Method Using Single Furnace Carbothermic Reduction Operated In Batch Mode App 20080196545 - Fruehan; Richard J.	2008-08-21
Method using single furnace carbothermic reduction with temperature control within the furnace App 20060042413 - Fruehan; Richard J.	2006-03-02
Method using selected carbons to react with Al2O and Al vapors in the carbothermic production of aluminum Grant 6,849,101 - Fruehan , et al. February 1, 2	2005-02-01
Two-zone countercurrent smelter system and process Grant 5,378,260 - Cox , et al. January 3, 1	1995-01-03
Method of producing low nitrogen steel Grant 4,004,920 - Fruehan January 25, 1	1977-01-25

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