JR

John Roberts

CR Cree: 53 patents #26 of 639Top 5%
KC K.W. Muth Company: 12 patents #4 of 21Top 20%
📍 Grand Rapids, MI: #6 of 1,824 inventorsTop 1%
🗺 Michigan: #289 of 86,293 inventorsTop 1%
Overall (All Time): #18,384 of 4,157,543Top 1%
89
Patents All Time

Issued Patents All Time

Showing 76–89 of 89 patents

Patent #TitleCo-InventorsDate
6899200 Sound barrier Kenneth James Arcus 2005-05-31
5619374 Mirror coating 1997-04-08
5619375 Mirror coating 1997-04-08
5528422 Mirror coating 1996-06-18
5481409 Mirror assembly 1996-01-02
D363920 Electrical circuit board Keith R. Spencer 1995-11-07
5439725 Floor mat for an overland vehicle 1995-08-08
5361190 Mirror assembly Keith R. Spencer 1994-11-01
5355284 Mirror assembly 1994-10-11
5207492 Mirror assembly 1993-05-04
H1109 Instrument display apparatus Barnes W. Woodhall 1992-10-06
5128659 Instrument display apparatus Barnes W. Woodhall 1992-07-07
5014167 Visual signaling apparatus 1991-05-07
5005009 Method and apparatus for multiple object viewing 1991-04-02