JC

John Campbell

KC Kerr-Mcgee Coal: 3 patents #2 of 18Top 15%
EM Emc: 3 patents #978 of 3,345Top 30%
PC Peabody Coal: 2 patents #3 of 33Top 10%
FM Faultless-Doerner Manufacturing: 1 patents #2 of 4Top 50%
DC Donaldson Company: 1 patents #454 of 695Top 70%
SI Solar Turbines Incorporated: 1 patents #238 of 536Top 45%
General Motors: 1 patents #9,361 of 18,328Top 55%
Overall (All Time): #325,634 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7958095 Methods and apparatus for collecting and processing file system data 2011-06-07
7539706 Methods and apparatus for collecting and processing file system data 2009-05-26
7478404 System and methods for event impact analysis 2009-01-13
7296832 Locking mechanism for door hinge 2007-11-20
6427321 Automatic decking and automatic fastening system Rino A. Fedato 2002-08-06
6086311 Handtruck with deflectable mandrel for locking inside the core of a reel or spool to be lifted and moved 2000-07-11
5452839 Stud gun positioning apparatus John J. Kapusnik, Richard B. Griffin 1995-09-26
D340638 Furniture leg shoe 1993-10-26
4974284 Picnic table caster assembly 1990-12-04
4969537 Muffler assembly and method of manufacture Wayne M. Wagner, William L. Burchett, John S. Wiese, John Hiemstra, Timothy A. Bethke 1990-11-13
4904154 Loading system for railroad cars Robert Elder, Tony G. Gardner, Jerry L. Hughes, Kenneth Krause, Ronald K. Pepper 1990-02-27
4746498 Process for reducing gaseous sulfur dioxide content of flue gases by preheating coals prior to burning such coals and by controlling combustion temperature levels Virgil J. Barczak, John O. Bodman 1988-05-24
4629392 System for batch loading coal into railroad cars Carl L. Baldwin, David J. Foley, Michael R. McHann 1986-12-16
4380353 Dust control system and method of operation Daniel J. Moynihan, William D. Roper, Earl C. Willis 1983-04-19
4200335 Gauging apparatus and method, particularly for controlling mining by a mining machine Daniel J. Moynihan 1980-04-29