EC

Elmer R. Crabb

Caterpillar: 19 patents #200 of 8,398Top 3%
AG Agco: 1 patents #189 of 399Top 50%
📍 Aurora, IL: #33 of 1,049 inventorsTop 4%
🗺 Illinois: #3,784 of 84,256 inventorsTop 5%
Overall (All Time): #226,174 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
6609575 Adjustable link assembly 2003-08-26
6478706 Planetary steering differential 2002-11-12
D462701 Engine enclosure for tracked feller-buncher Matthew T. Keeley, Craig B. Kelley, Charles H. Menke 2002-09-10
D455763 Cab/counterweight upper for tracked feller-buncher John F. Brandenburg, III, Matthew T. Keeley, Craig B. Kelley, Charles H. Menke 2002-04-16
D451933 Tracked feller-buncher upper John F. Brandenburg, III, Matthew T. Keeley, Craig B. Kelley, Charles H. Menke 2001-12-11
6027185 Recoil and slack adjustment mechanism for an endless track chain of an undercarriage assembly 2000-02-22
6017288 Final drive for a belted machine 2000-01-25
6003614 Hitch assembly providing articulation and oscillation 1999-12-21
5927412 Castering swing link for a track sub-assembly 1999-07-27
5785395 Cushioned roller for a belted undercarriage 1998-07-28
5749423 Belted work machine Jerry J. Burckhartzmeyer, Terry F. Lehnhoff, Alva L. Watson, Jr. 1998-05-12
D375506 Work machine having endless ground engaging drive belts Robert C. Bastian, William C. Boroski, Melvin P. Busch, Jr., Patrick W. Friede, Alan D. Gustafson +9 more 1996-11-12
D364879 Work machine having endless ground engaging drive belts Robert C. Bastian, William C. Boroski, Melvin P. Busch, Jr., Patrick W. Friede, Alan D. Gustafson +9 more 1995-12-05
5368115 Undercarriage assembly for a vehicle 1994-11-29
5312176 Self-aligning idler wheel assembly 1994-05-17
5293948 Undercarriage assembly for a vehicle 1994-03-15
4955442 Steering mechanism for a vehicle William J. Spivey, Jr. 1990-09-11
4700794 Vehicle steering apparatus James R. Bernhagen, Marilyn S. Murphy, Daniel G. Roley, Gene R. St. Germain, James H. Tunnell 1987-10-20
4398617 Rear axle-drawbar oscillation support system Nick D. Hoyle 1983-08-16
4277964 Door lock Alta M. Parr 1981-07-14