DP

David A. Purcell

EN Encad: 5 patents #6 of 38Top 20%
PD Protostar, Inc., A Delaware: 5 patents #3 of 8Top 40%
Overall (All Time): #454,768 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10828226 Collapsible upright wheeled walker apparatus Peter James Fellingham, Yichuan Pan, Nebojsa Sataric 2020-11-10
10588815 Collapsible upright wheeled walker apparatus Peter James Fellingham, Yichuan Pan, Nebojsa Sataric 2020-03-17
10555866 Wheeled walker wheel direction lock apparatus and method Yichuan Pan, Peter James Fellingham, Zelin Zhang, David Petersen, Scott Allen Rieger 2020-02-11
10322056 Collapsible upright wheeled walker apparatus Peter James Fellingham, Yichuan Pan, Nebojsa Sataric 2019-06-18
10085909 Collapsible upright wheeled walker apparatus Peter James Fellingham, Yichuan Pan, Nebojsa Sataric 2018-10-02
9585807 Collapsible upright wheeled walker apparatus Peter James Fellingham, Yichuan Pan, Nebojsa Sataric 2017-03-07
6565197 Ink jet printer incorporating high volume ink reservoirs Richard A. Murray, William M. Fries 2003-05-20
6375298 Intelligent printer components and printing system Richard A. Murray, Dan J. Dull 2002-04-23
6347857 Ink droplet analysis apparatus David A. Neese, Warren Free 2002-02-19
6227643 Intelligent printer components and printing system Richard A. Murray, Dan J. Dull 2001-05-08
5686947 Ink jet printer incorporating high volume ink reservoirs Richard A. Murray, William M. Fries 1997-11-11