Roy C. Challberg has been granted 14 US patents while listed as an inventor at GE . The first was granted in 1993 and the most recent in August 2005. Roy C. Challberg ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Roy C. Challberg in Livermore, CA, US.
Patents per Year Patents granted per year, 1993 to 2005 Bar chart with a peak of 4 patents in 1994. peak 4 1993: 2 patents 1993 1994: 4 patents 1994 1995: 1 patents 1995 1997: 1 patents 1997 1998: 1 patents 1998 1999: 2 patents 1999 2000: 1 patents 2000 2004: 1 patents 2004 2005: 1 patents 2005
Issued Patents All Time
Profile Widget
Showing 1–14 of 14 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6934350 Core configuration for a nuclear reactor Larry E. Fennern , Russell M. Fawcett 2005-08-23
$20,161,000
6813327 Core support for an F-lattice core of a boiling water nuclear reactor — 2004-11-02
$64,284,000
6097779 Fuel bundle and control rod assembly for a nuclear reactor Larry E. Fennern , Russell M. Fawcett 2000-08-01
$170,662,000
5960051 Methods and apparatus for moving fuel bundles in a nuclear reactor David L. Faulstich , Bishara E. Kakunda , Karim-Panahi Khosrow , John D. Wilford , Richard A. Wolters, Jr. +2 more 1999-09-28
$105,696,000
5930320 Assemblies and methods for mitigating effects of reactor pressure vessel expansion Perng-Fei Gou , Cherk Lam Chu , Robert P. Oliver 1999-07-27
$99,896,000
5850424 Refueling machine with relative positioning capability Cecil R. Jones 1998-12-15
$140,699,000
5624047 Telescoping mast with zero clearance for refueling machine Cecil R. Jones 1997-04-29
$45,143,000
5406597 Boiling water reactor including split control rod drives Larry E. Fennern , Nilkanth T. Patel , Russell M. Fawcett , Richard A. Ose , Charles W. Dillmann +1 more 1995-04-11
$28,086,000
5353319 Removable feedwater sparger assembly — 1994-10-04
$13,933,000
5353320 Reactor pressure vessel nozzle Hubert Allen Upton 1994-10-04
$13,933,000
5319689 Compactable phase-separator assembly for dual-phase nuclear reactor — 1994-06-07
$9,149,000
5283809 Steam separator latch assembly Irvin R. Kobsa 1994-02-01
$16,307,000
5241570 Core-control assembly with a fixed fuel support — 1993-08-31
$10,277,000
5183627 Nuclear reactor with low-level core coolant intake Harold E. Townsend 1993-02-02
$17,776,000
