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

Harold E. Johnston — 14 Patents

ATAlliant Techsystems: 8 patents #21 of 658Top 4%
CTCordant Technologies: 1 patents #30 of 75Top 40%
NSNorthrop Grumman Innovation Systems: 1 patents #32 of 118Top 30%
OAOrbital Atk: 1 patents #58 of 197Top 30%
Seattle, WA: #2,069 of 21,776 inventorsTop 10%
Washington: #7,280 of 76,902 inventorsTop 10%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Harold E. Johnston has been granted 14 US patents while listed as an inventor at Alliant Techsystems. The first was granted in 1989 and the most recent in November 2020. Harold E. Johnston ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Harold E. Johnston in Seattle, WA, US.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10836687 Systems for producing DEMN eutectic, and related methods of forming an energetic composition Stephen P. Velarde 2020-11-17
9650307 Methods for producing DEMN eutectic Stephen P. Velarde 2017-05-16 $35,404,000
8460486 Percussion primer composition and systems incorporating same Kristin F. Warner, Reed J. Blau, Scott K. Lusk 2013-06-11 $6,237,000
8282751 Methods of forming a sensitized explosive and a percussion primer Kirstin Warner, Reed J. Blau, Scott K. Lusk 2012-10-09 $4,927,000
7238336 Method for the production of α-alane Gary K. Lund, Jami M. Hanks 2007-07-03 $10,553,000
6984746 Method for the production of α-alane Gary K. Lund, Jami M. Hanks 2006-01-10 $10,908,000
6870061 Continuous process and system for production of glycidyl nitrate from glycerin, nitric acid and caustic and conversion of glycidyl nitrate to poly(glycidyl nitrate) Thomas K. Highsmith 2005-03-22 $10,661,000
6610157 Prilled energetic particles, and process for making the same Thomas K. Highsmith 2003-08-26 $9,033,000
6512113 Synthesis for 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diazatetracyclo[5.5.0.05,903,11]-dodecane Andrew J. Sanderson, Robert M. Hajik, Thomas K. Highsmith 2003-01-28 $19,998,000
6416601 Method of recovery for nitramines from aluminized energetic materials Kirstin Warner, Louis Cannizzo, Robert M. Hajik 2002-07-09 $26,539,000
5874574 Process of crystallizing 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12,-hexaazatetracyclo 5.5.0.0.5,903,11!- dodecane Robert B. Wardle 1999-02-23 $13,356,000
PP9697 Acer palmatum named `Beni Shi En` 1996-11-19
5072549 Method of cutting gemstones and product 1991-12-17
D304698 Gemstone 1989-11-21