Mark Hemphill
16Patents
3h-index
25Co-inventors
60Inventor score
Filing activity: Jul 16, 2001 → Jun 30, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6494609B1 | Slurry mixer outlet | Chemistry; Metallurgy | 97 | Expired |
| US6874930B2 | Slurry mixer outlet | Chemistry; Metallurgy | 85 | Expired |
| US11186067B2 | Gypsum board from gypsum having high level of chloride salt and a starch layer and methods associated therewith | Chemistry; Metallurgy | 3 | Active |
| US11186066B2 | Gypsum board from gypsum having high level of chloride salt and a perforated sheet and methods associated therewith | Emerging Cross-Sectional Technologies | 2 | Active |
| US11787739B2 | Flour binder for gypsum board, and related methods, product, and slurries | Emerging Cross-Sectional Technologies | 0 | Active |
| US11002010B2 | Methods for making high sound transmission class gypsum boards and gypsum boards made by the method | Physics | 0 | Active |
| US11891336B2 | Gypsum board containing high absorption paper and related methods | Chemistry; Metallurgy | 0 | Active |
| US11993054B2 | Method of preparing gypsum wallboard from high salt gypsum, and related product | Emerging Cross-Sectional Technologies | 0 | Active |
| US11046053B2 | Composite gypsum board and related methods | Chemistry; Metallurgy | 0 | Active |
| US11760689B2 | Methods of removing chloride from gypsum having high level of chloride salt | Chemistry; Metallurgy | 0 | Active |
| US12415765B2 | Board with fiber-reinforced dense layer | Emerging Cross-Sectional Technologies | 0 | Active |
| US11999658B2 | High salt gypsum wallboard containing salt absorbents and methods of making same | Chemistry; Metallurgy | 0 | Active |
| US11702373B2 | Gypsum wallboard with enhanced fire resistance, and related coatings and methods | Chemistry; Metallurgy | 0 | Active |
| US11834374B2 | Accelerator comprising starch, and related board, slurries, and methods | Chemistry; Metallurgy | 0 | Active |
| US11834375B2 | Fire resistant gypsum board and related methods | Chemistry; Metallurgy | 0 | Active |
| US12304871B2 | Open-celled gypsum core, gypsum acoustic panel, and method for making same | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.