Rajan G. Rajan has been granted 10 US patents while listed as an inventor at Zero E Technologies . The first was granted in 1997 and the most recent in October 2019. Rajan G. Rajan ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Rajan G. Rajan in Bensalem, PA, US.
Patents per Year Patents granted per year, 1997 to 2019 Bar chart with a peak of 2 patents in 2015. peak 2 1997: 1 patents 1997 2003: 1 patents 2003 2008: 1 patents 2008 2010: 1 patents 2010 2012: 1 patents 2012 2015: 2 patents 2015 2018: 2 patents 2018 2019: 1 patents 2019
Issued Patents All Time
Profile Widget
Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date
10435313 Systems, devices, and methods of water filtration Doug Kellam , Liu Wei , Ajit Dighe , Charles Lieppe 2019-10-08
10099942 Systems and methods of eliminating filter air locks Doug Kellam , Liu Wei 2018-10-16
9994459 Gravity-fed and dual ion-exchange water filtration bottle Doug Kellam , Byron Stanger , Ajit Dighe , Charles Lieppe 2018-06-12
9090483 Water filtering and dispensing system and system for filtering, storing, delivering, and testing water Mathu Rajan , Raja Rajan , Ken Williams 2015-07-28
9067805 Water filtering and dispensing system and system for filtering, storing, delivering, and testing water Mathu Rajan , Raja Rajan , Ken Williams 2015-06-30
8252185 Water treatment apparatus and method Mathu Rajan 2012-08-28
D620304 Water filtering and dispensing system Mathu Rajan , Raja Rajan , Ken Williams 2010-07-27
7413663 Water treatment apparatus and method Mathu Rajan 2008-08-19
6572769 Water treatment apparatus Mathu Rajan 2003-06-03
5635063 Water treatment apparatus Mathu Rajan 1997-06-03