DC

Donald L. Clark

AT AT&T: 2 patents #7,280 of 18,772Top 40%
BS Bio Gro Systems: 1 patents #3 of 4Top 75%
GP Gte Products: 1 patents #520 of 928Top 60%
SH Shopsmith: 1 patents #13 of 27Top 50%
Overall (All Time): #765,141 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5679262 Method for alkaline treatment of sewage sludge for beneficial use Mark Girovich 1997-10-21
5507324 Fuel fill devices for boats Warwick M. Whitley, II 1996-04-16
5503199 Fuel fill devices for boats Warwick M. Whitley, II 1996-04-02
5141706 Air purification unit 1992-08-25
D285207 Drill press pivot mount David S. Morris, William C. Waltz, II 1986-08-19
4456042 Planer table assembly John G. Legler 1984-06-26
4231021 Address data converter William P. Graves 1980-10-28