Metzger; Richard N.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Metzger; Richard N..The latest application filed is for "appliance for disinfection of hvac systems".

Company Profile

0.4.7

Metzger; Richard N. - Pasadena CA
Metzger, Richard N. - Valencia CA

*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
System and method for controlling an ultraviolet air treatment device for return air duct applications Grant 7,632,459 - Lentz , et al. December 15, 2	2009-12-15
Appliance for disinfection of HVAC systems Grant 7,421,851 - Witham , et al. September 9, 2	2008-09-09
Appliance for disinfection of HVAC systems App 20060254298 - Witham; David L. ; et al.	2006-11-16
Appliance for disinfection of HVAC systems Grant 7,107,778 - Witham , et al. September 19, 2	2006-09-19
Low level ultraviolet disinfecting system App 20050163653 - Crawford, Keith M. ; et al.	2005-07-28
Low level ultraviolet disinfecting system App 20050163652 - Metzger, Richard N. ; et al.	2005-07-28
Disinfecting system App 20050163668 - Crawford, Keith M. ; et al.	2005-07-28
System and method for controlling an ultraviolet air treatment device for return air duct applications App 20050118054 - Lentz, Tracy L. ; et al.	2005-06-02
System and method for controlling an ultraviolet air treatment device for return air duct applications Grant 6,849,234 - Lentz , et al. February 1, 2	2005-02-01
System and method for controlling an ultraviolet air treatment device for return air duct applications App 20030099569 - Lentz, Tracy L. ; et al.	2003-05-29
Shutter for a UV sensor App 20020070348 - Metzger, Richard N. ; et al.	2002-06-13

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