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Keystone International — 93 Patents

Rank (All Time): #7,607 of 106,127Top 8%

50 inventors

93 Patents All Time

Top Inventors at Keystone International All Time

Showing 1–50 of 50 inventors

Rank	Name	Patents
1	William B. Scobie	20
2	Michael D. McNeely	10
3	Alan F. Chou	7
#4	Edward G. Holtgraver	6
#5	Daniel P. Kusmer	5
#5	Douglas G. Calvin	5
#5	Paul A. Yohner	5
#8	Jack B. Alberts	4
#8	Michael L. Wagberg	4
#8	Robert A. Frenzel	4
#8	Thomas F. Higgins	4
#12	Cleo M. Bickford	3
#12	George J. Loos	3
#12	Horace J. Maxwell	3
#12	Joe L. Aldrich	3
#12	Larry A. Sample	3
#12	Marvin E. Beasley	3
#12	Max Kueffer	3
#12	Petrus J. R. Schils	3
#12	Randall Miller	3
#12	Roy L. Feiss	3
#12	Walter W. Powell	3
#23	Daniel Walker	2
#23	Jeffrey T. Lynch	2
#23	Joel David Bell	2
#23	Walter T. Roush	2
#27	Chris M. Yohner	1
#27	Clifford J. Bell	1
#27	David Kalix	1
#27	Dan Kusmer	1
#27	Dick R. Dodds	1
#27	George R. Hall, II	1
#27	George J. Paptzun	1
#27	Henry R. Killian	1
#27	J. David Bell	1
#27	Jan L. Nethers	1
#27	Jeff A. Conley	1
#27	John M. Turner	1
#27	Richard B. Lee	1
#27	Rudolphus P. M. Lemmens	1
#27	Stephen Gibbs	1
#27	Stephen R. Gibbs	1
#27	William Stahley	1
#27	Ronald J. Sirchio	1
#27	Ervin Skovgaard	1
#27	James J. Henofer	1
#27	Alfred van Eck	1
#27	Goran Velimirovic	1
#27	Max Kuffer	1
#27	Alan Morris Scholes	1