Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JH

John L. Harmon — 10 Patents

GE: 9 patents #3,767 of 36,430Top 15%
Wilmington, NC: #75 of 905 inventorsTop 9%
North Carolina: #5,314 of 45,564 inventorsTop 15%
Overall (All Time): #481,000 of 4,157,543Top 15%
10 Patents All Time
John L. Harmon has been granted 10 US patents while listed as an inventor at GE. The first was granted in 1986 and the most recent in September 1999. John L. Harmon ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list John L. Harmon in Wilmington, NC, US.

Patents per Year

Patents granted per year, 1986 to 1999Bar chart with a peak of 3 patents in 1991.peak 31986: 1 patents19861991: 3 patents19911994: 1 patents19941995: 2 patents19951998: 2 patents19981999: 1 patents1999

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5958267 High pressure laser welding of nuclear fuel rods Andrew A. Lingenfelter, James M. Gehr, Johnny R. Skipper, Robert J. Sziemkiewicz, Jeffrey P. Johnson +5 more 1999-09-28 $105,696,000
5748691 Apparatus and methods for sealing end plugs for nuclear fuel rods William C. Peters, Robert A. Haughton, Andrew A. Lingenfelter 1998-05-05 $79,876,000
5727039 Spacer capture mechansim for non-round water rods Richard G. Patterson, Robert Bruce Elkins, II, Russell Patrick Higgins, Edward A. Croteau, Harold B. King +4 more 1998-03-10 $55,592,000
5413682 Recovery of fluoride from waste solutions Roy F. Thornton, Bang M. Kim, Steven J. Babb 1995-05-09 $16,078,000
5386444 Fuel rod loading apparatus Harold B. King, Eric B. Johansson 1995-01-31 $25,934,000
5335577 Method and apparatus for preventing hazardous explosion of ammonium nitrate Steven J. Babb 1994-08-09 $10,536,000
5069888 Process for passivating uranium oxides to control oxidation Richard I. Larson, Abdul G. Dada 1991-12-03 $10,146,000
5066429 Method for passivating uranium oxides to control oxidation, and the oxidation resisting uranium product thereof Richard I. Larson, Richard P. Ringle 1991-11-19 $19,176,000
4989433 Method and means for metal sizing employing thermal expansion and contraction Charles Schiltz, Gerald W. McKenzie 1991-02-05
4576654 Heat treated tube Fletcher C. Eddens, David W. White 1986-03-18 $9,106,000