Keith C. Hong
47Patents
11h-index
29Co-inventors
75Inventor score
Filing activity: Aug 28, 1997 → Feb 13, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7241500B2 | Colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing same | Emerging Cross-Sectional Technologies | 118 | Expired |
| US7452598B2 | Mineral-surfaced roofing shingles with increased solar heat reflectance, and process for producing same | Emerging Cross-Sectional Technologies | 50 | Active |
| US7592066B2 | Roofing articles with reflective thin films and the process of producing the same | Emerging Cross-Sectional Technologies | 37 | Active |
| US8361597B2 | Solar heat-reflective roofing granules, solar heat-reflective shingles, and process for producing same | Emerging Cross-Sectional Technologies | 15 | Active |
| US8668954B2 | Algae resistant roofing granules with controlled algaecide leaching rates, algae resistant shingles and process for producing same | Emerging Cross-Sectional Technologies | 14 | Active |
| US6015338A | Abrasive tool for grinding needles | Human Necessities | 14 | Expired |
| US8114516B2 | Colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing same | Emerging Cross-Sectional Technologies | 13 | Active |
| US7811630B2 | Algae resistant roofing granules with controlled algaecide leaching rates, algae resistant shingles, and process for producing same | Emerging Cross-Sectional Technologies | 13 | Active |
| US9181456B2 | Roofing product including roofing-grade asphalt mixture and methods of making the roofing product and the roofing-grade asphalt mixture | Chemistry; Metallurgy | 12 | Active |
| US8039048B2 | Algae resistant roofing granules with controlled algaecide leaching rates, algae resistant shingles and process for producing same | Emerging Cross-Sectional Technologies | 11 | Active |
| US7595107B2 | Algae resistant roofing system containing silver compounds, algae resistant shingles, and process for producing same | Emerging Cross-Sectional Technologies | 11 | Active |
| US9200451B2 | Colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing same | Emerging Cross-Sectional Technologies | 10 | Active |
| US8535803B2 | Colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing same | Emerging Cross-Sectional Technologies | 10 | Active |
| US7749593B2 | Solar heat responsive exterior surface covering | Emerging Cross-Sectional Technologies | 8 | Active |
| US7867562B2 | Method of controlling coating edge thickness in a web process | Performing Operations; Transporting | 8 | Active |
| US8628850B2 | Colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing same | Emerging Cross-Sectional Technologies | 6 | Active |
| US9540544B2 | Oxidized mixture of bio-based material and asphalt, a bio-based asphaltic material, and methods of making the same | Emerging Cross-Sectional Technologies | 6 | Active |
| US10550574B2 | Roofing product including bio-based asphalt mixture and methods of making the roofing product and the roofing-grade asphalt mixture | Emerging Cross-Sectional Technologies | 6 | Active |
| US7687106B2 | Algae resistant roofing granules with controlled algaecide leaching rates, algae resistant shingles, and process for producing same | Emerging Cross-Sectional Technologies | 6 | Active |
| US8920926B2 | Photocatalytic colored roofing granules | Emerging Cross-Sectional Technologies | 6 | Active |
| US8349435B2 | Mineral surfaced asphalt-based roofing products with encapsulated healing agents and methods of producing the same | Emerging Cross-Sectional Technologies | 5 | Active |
| US8852680B2 | Mineral surfaced asphalt-based roofing products with encapsulated healing agents and methods of producing the same | Emerging Cross-Sectional Technologies | 3 | Active |
| US9243409B2 | Controlled time-release algae resistant roofing system | Emerging Cross-Sectional Technologies | 3 | Active |
| US9217249B2 | Roof covering material and method of manufacturing | Emerging Cross-Sectional Technologies | 3 | Active |
| US9334654B2 | Roofing products including mixtures of algae-resistant roofing granules | Emerging Cross-Sectional Technologies | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.