Roger E. Hayner
24Patents
11h-index
18Co-inventors
72Inventor score
Filing activity: Mar 7, 1985 → Jul 2, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6136898A | Unblown ethylene-vinyl acetate copolymer treated asphalt and its method of preparation | Chemistry; Metallurgy | 40 | Expired |
| US5911817A | Process for paving with asphalt containing mineral lubricating oil base stock | Chemistry; Metallurgy | 35 | Expired |
| US6133351A | Sulfur-in-oil in asphalt and polymer composition and process | Chemistry; Metallurgy | 34 | Expired |
| US5961709A | Environmentally improved asphalt compositions and their preparation | Chemistry; Metallurgy | 29 | Expired |
| US5904760A | Rerefined oil or hydrofinished neutral oil for blending superpave asphalts with low temperature properties | Chemistry; Metallurgy | 27 | Expired |
| US6027557A | Oxidized blends of asphalt and paraffinic base stock fluxing component having improved low temperature properties | Chemistry; Metallurgy | 27 | Expired |
| US5601697A | Demetallation-High carbon conversion process, apparatus and asphalt products | Chemistry; Metallurgy | 19 | Expired |
| US4842903A | Wax, sulfonate, dispersing oil, sepiolite clay compositions for protective soft coatings | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5580376A | Asphalt improvement | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6001162A | Sulfur-treated asphalt compositions and their preparation | Chemistry; Metallurgy | 11 | Expired |
| US6153004A | Safe sulfur slurry | Chemistry; Metallurgy | 11 | Expired |
| US6048447A | Asphalt compositions containing solvent deasphalted bottoms and rerefined lube oil bottoms, and their preparation | Chemistry; Metallurgy | 9 | Expired |
| US6057390A | Crosslinkable polymer-modified asphalt and its method of preparation | Chemistry; Metallurgy | 9 | Expired |
| US9115295B2 | Vegetable-based products of the siccative type for recycling and rejuvenating reclaimed asphalt pavements in situ or in a dedicated plant | Chemistry; Metallurgy | 9 | Active |
| US7449131B2 | Techniques and compositions for shielding radioactive energy | Physics | 8 | Active |
| US4647309A | Waterborne firm coating for temporary protection of parts, providing controlled lubrication during assembly | Chemistry; Metallurgy | 7 | Expired |
| US7241821B1 | Polymer-modified, vulcanized asphalt composition and its method of preparation | Chemistry; Metallurgy | 6 | Expired |
| US5728291A | Demetallation - high carbon conversion process, apparatus and asphalt products | Chemistry; Metallurgy | 6 | Expired |
| US5104742A | Water based coating for roughened metal surfaces | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7553431B2 | Techniques and compositions for shielding radioactive energy | Physics | 3 | Active |
| US4650692A | Metal-sulfonate/piperidine derivative combination protective coatings | Emerging Cross-Sectional Technologies | 2 | Expired |
| US11732108B1 | Modified asphalt compositions containing dialkyl polysulfides | Chemistry; Metallurgy | 2 | Active |
| US7518028B2 | Radiation shields and techniques for radiation shielding | Physics | 1 | Active |
| US5094889A | Water based coating for roughened metal surfaces | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.