JO

Jack B. Ottestad

EG Esco Group: 3 patents #43 of 186Top 25%
CE Clark Equipment: 1 patents #215 of 416Top 55%
Overall (All Time): #425,636 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7156190 Impact tool Craig A. Berard 2007-01-02
6155353 Impact tool 2000-12-05
5685563 Counterbalance system for short wheelbase vehicles 1997-11-11
5269382 Impact device 1993-12-14
5183316 Mounting bracket for a working device 1993-02-02
5065824 Hydraulically powered repetitive impact hammer 1991-11-19
4892358 Bucket system with percussive penetration member 1990-01-09
4892359 Bucket system with percussive penetration member 1990-01-09
4783123 Tool bit for impact ripping of a mine face 1988-11-08
4550784 Tool mounting means for a hydraulically powered impact hammer Bernard W. Duehr, Jr. 1985-11-05
4262917 Tool holder for impact tool 1981-04-21
4222462 Brake to decelerate axially moving actuating rod 1980-09-16