CF

Charles R. Frigard

RO Rollerblade: 2 patents #23 of 42Top 55%
IS Infrared Solutions: 1 patents #3 of 9Top 35%
📍 Deephaven, MN: #19 of 81 inventorsTop 25%
🗺 Minnesota: #7,542 of 52,454 inventorsTop 15%
Overall (All Time): #523,688 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
D487577 Camera Justin M. Sheard, Kirk R. Johnson, Thomas J. McManus 2004-03-16
6482063 Articulating blocks toy 2002-11-19
5904111 Trimarans with removable beams configurations and steering wheel assemblies 1999-05-18
D396684 Watercraft 1998-08-04
5617805 Trimaran 1997-04-08
D371104 Boat deck 1996-06-25
D321393 Slotted roller skate Brennan J. Olson 1991-11-05
D315941 Roller skate brake Brennan J. Olson, Thomas J. Brace 1991-04-02
D301908 Roller skate Brennan J. Olson 1989-06-27
D276231 Word processor Verne L. Severson, Thomas N. Ursin, Virgil A. Kluesner, Fredric C. Zimmerman 1984-11-06