Witham; Richard Donald

Patent Applications and Registrations

Patent applications and USPTO patent grants for Witham; Richard Donald.The latest application filed is for "single phase yttrium phosphate having the xenotime crystal structure and method for its synthesis".

Company Profile

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Witham; Richard Donald - Boulder City NV
Witham; Richard Donald - Las Vegas NV US
Witham; Richard Donald - Henderson NV US

*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
Single Phase Yttrium Phosphate Having The Xenotime Crystal Structure And Method For Its Synthesis App 20140011662 - Gray; Sandra Lee ; et al.	2014-01-09
Water purification device for arsenic removal Grant 8,475,658 - Witham , et al. July 2, 2	2013-07-02
Single phase yttrium phosphate having the xenotime crystal structure and method for its synthesis Grant 8,425,871 - Gray , et al. April 23, 2	2013-04-23
Process for removing and sequestering contaminants from aqueous streams App 20100187178 - Burba; John Leslie ; et al.	2010-07-29
Composition for removing arsenic from aqueous streams Grant 7,686,976 - Witham , et al. March 30, 2	2010-03-30
Water Purification Device For Arsenic Removal App 20100044317 - Witham; Richard Donald ; et al.	2010-02-25
Single Phase Yttrium Phosphate Having The Xenotime Crystal Structure And Method For Its Synthesis App 20090298672 - Gray; Sandra Lee ; et al.	2009-12-03
Composition For Removing Arsenic From Aqueous Streams App 20080093580 - Witham; Richard Donald ; et al.	2008-04-24
Process using rare earths to remove oxyanions from aqueous streams Grant 7,338,603 - McNew , et al. March 4, 2	2008-03-04
Process for removing arsenic from aqueous streams Grant 7,300,589 - Witham , et al. November 27, 2	2007-11-27
Composition and process for removing arsenic from aqueous streams App 20060207945 - Witham; Richard Donald ; et al.	2006-09-21
Process for removing arsenic from drinking water Grant 7,048,853 - Witham , et al. May 23, 2	2006-05-23
Process for removing arsenic from drinking water App 20050133455 - Witham, Richard Donald ; et al.	2005-06-23
Process for removing arsenic from aqueous streams Grant 6,863,825 - Witham , et al. March 8, 2	2005-03-08
Process for removing arsenic from aqueous streams App 20040144729 - Witham, Richard Donald ; et al.	2004-07-29

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