Harold E. Johnston
15Patents
5h-index
12Co-inventors
63Inventor score
Filing activity: Apr 22, 1977 → May 1, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5072549A | Method of cutting gemstones and product | Performing Operations; Transporting | 30 | Expired |
| US5874574A | 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 | Chemistry; Metallurgy | 18 | Expired |
| US4164930A | Cooking stove | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| USD304698S | Gemstone | General | 12 | Expired |
| US7238336B2 | Method for the production of α-alane | Chemistry; Metallurgy | 8 | Expired |
| US6984746B2 | Method for the production of α-alane | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6416601B1 | Method of recovery for nitramines from aluminized energetic materials | Emerging Cross-Sectional Technologies | 2 | Expired |
| USPP9697P | Acer palmatum named `Beni Shi En` | General | 1 | Expired |
| US8282751B2 | Methods of forming a sensitized explosive and a percussion primer | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US6870061B2 | Continuous process and system for production of glycidyl nitrate from glycerin, nitric acid and caustic and conversion of glycidyl nitrate to poly(glycidyl nitrate) | Chemistry; Metallurgy | 1 | Expired |
| US9650307B2 | Methods for producing DEMN eutectic | Chemistry; Metallurgy | 0 | Active |
| US6512113B1 | Synthesis for 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diazatetracyclo[5.5.0.05,903,11]-dodecane | Chemistry; Metallurgy | 0 | Expired |
| US6610157B1 | Prilled energetic particles, and process for making the same | Chemistry; Metallurgy | 0 | Expired |
| US8460486B1 | Percussion primer composition and systems incorporating same | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10836687B2 | Systems for producing DEMN eutectic, and related methods of forming an energetic composition | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.