John Campbell — 15 Patents at Emc

John Campbell has been granted 15 US patents while listed as an inventor at Emc. The first was granted in 1980 and the most recent in June 2011. John Campbell ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list John Campbell in Mascoutah, IL, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7958095	Methods and apparatus for collecting and processing file system data	—	2011-06-07	$24,213,000
7539706	Methods and apparatus for collecting and processing file system data	—	2009-05-26	$32,177,000
7478404	System and methods for event impact analysis	—	2009-01-13	$20,508,000
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	$18,413,000
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	$878,000
4904154	Loading system for railroad cars	Robert Elder, Tony G. Gardner, Jerry L. Hughes, Kenneth Krause, Ronald K. Pepper	1990-02-27	$10,355,000
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	$6,495,000
4629392	System for batch loading coal into railroad cars	Carl L. Baldwin, David J. Foley, Michael R. McHann	1986-12-16	$4,815,000
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

John Campbell — 15 Patents

Issued Patents All Time

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