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Michael D. Blackston

BO Bondhus: 7 patents #1 of 10Top 10%
HM Heise Mfg.: 5 patents #1 of 5Top 20%
Overall (All Time): #388,852 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6684741 Tool with fastener engaging member 2004-02-03
6681662 Tool with fastener engaging member 2004-01-27
6345798 Low-cost holder for labeling and displaying tools John R. Bondhus, Eric Bondhus, Mark L. Petroske 2002-02-12
6128981 Folding hand tool set John R. Bondhus, Barry Bondhus, Dennis A. Burda, Mark L. Petroske 2000-10-10
5970828 Folding hand tool set John R. Bondhus, Barry Bondhus, Dennis A. Burda, Mark L. Petroske 1999-10-26
5791211 Folding hand tool set John R. Bondhus, Barry Bondhus, Dennis A. Burda, Mark L. Petroske 1998-08-11
D382190 Handle for a folding hand tool set Dennis A. Burda, Mark L. Petroske 1997-08-12
5251521 TORX-compatible elliptical driver Dennis A. Burda 1993-10-12
4562665 Breakaway for revolving doors 1986-01-07
4534131 Revolving door security system Gary Reinecke 1985-08-13
4530183 Revolving door system Stanley R. Heise, Michael B. Zekich, John L. B. Parselle 1985-07-23
4475308 Revolving door system Stanley R. Heise, Michael B. Zekich, John L. B. Parselle 1984-10-09
4458447 Revolving door system Stanley R. Heise, Michael B. Zekich 1984-07-10