JR

Jay H. Renfrow

Caterpillar: 3 patents #2,162 of 8,398Top 30%
Overall (All Time): #1,527,854 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8662816 Z-bar linkage for wheel loader machines Joel R. Grimes, Wayne E. Harshberger, II, Jason J. Hagedorn, Jia X. Zhao, Susan Green 2014-03-04
7293377 Wear pad for an extendable linkage George Carl Pinther, II, Brian Buchanan, Gary Walth 2007-11-13
6108951 Work machine having improved implement coupling arrangement John P. Hall, Michael R. Helgeson 2000-08-29