Inventor · disambiguated record
Mark Hemphill
Also filed as: HEMPHILL MARK · HEMPHILL MARK K · HEMPHILL MARK KENNETH
18 granted patents·12 pending applications·424 citations·filing 2001–2024
90Inventor score
Top patents by PatentIndex Score
30 records- 0197US6874930B2Slurry mixer outletUNITED STATES GYPSUM CO·Filed 2002·Granted Apr 5, 2005·176 cites·24 claims
- 0294US6494609B1Slurry mixer outletUNITED STATES GYPSUM CO·Filed 2001·Granted Dec 17, 2002·238 cites·21 claims
- 0392US11186067B2Gypsum board from gypsum having high level of chloride salt and a starch layer and methods associated therewithUNITED STATES GYPSUM CO·Filed 2019·Granted Nov 30, 2021·5 cites·19 claims
- 0488US11186066B2Gypsum board from gypsum having high level of chloride salt and a perforated sheet and methods associated therewithUNITED STATES GYPSUM CO·Filed 2019·Granted Nov 30, 2021·3 cites·19 claims
- 0579US11702373B2Gypsum wallboard with enhanced fire resistance, and related coatings and methodsUNITED STATES GYPSUM CO·Filed 2020·Granted Jul 18, 2023·1 cites·18 claims
- 0678US11002010B2Methods for making high sound transmission class gypsum boards and gypsum boards made by the methodUNITED STATES GYPSUM CO·Filed 2019·Granted May 11, 2021·1 cites·20 claims
- 0770US12448334B2High temperature sag resistant gypsum panelKNAUF GIPS KG·Filed 2022·Granted Oct 21, 2025·0 cites·28 claims
- 0869US2025109069A1Fire resistant gypsum board comprising silica fume and related methodsUNITED STATES GYPSUM CO·Filed 2024·Application pending·0 cites
- 0968US2025205995A1Methods of preparing gypsum board using cellulosic fiberUNITED STATES GYPSUM CO·Filed 2024·Application pending·0 cites
- 1067US2025091950A1Gypsum boards prepared using uncalcined gypsum and slurries and methods related theretoUNITED STATES GYPSUM CO·Filed 2024·Application pending·0 cites
- 1166US12415765B2Board with fiber-reinforced dense layerKNAUF GIPS KG·Filed 2022·Granted Sep 16, 2025·0 cites·20 claims
- 1264US12448328B2Gypsum panel containing ammonium-exchanged vermiculite and methodsKNAUF GIPS KG·Filed 2022·Granted Oct 21, 2025·0 cites·18 claims
- 1362US12304871B2Open-celled gypsum core, gypsum acoustic panel, and method for making sameKNAUF GIPS KG·Filed 2022·Granted May 20, 2025·0 cites·19 claims
- 1461US11999658B2High salt gypsum wallboard containing salt absorbents and methods of making sameUNITED STATES GYPSUM CO·Filed 2022·Granted Jun 4, 2024·0 cites·20 claims
- 1560US2025018601A1Method and apparatus for making a gypsum boardUNITED STATES GYPSUM CO·Filed 2024·Application pending·0 cites
- 1659US11891336B2Gypsum board containing high absorption paper and related methodsUNITED STATES GYPSUM CO·Filed 2020·Granted Feb 6, 2024·0 cites·16 claims
- 1759US11760689B2Methods of removing chloride from gypsum having high level of chloride saltKNAUF GIPS KG·Filed 2021·Granted Sep 19, 2023·0 cites·18 claims
- 1859US2022356114A1High temperature sag resistant lightweight gypsum boardKNAUF GIPS KG·Filed 2022·Application pending·0 cites
- 1959US2023002974A1Compositions and methods for making paper using uncooked starch for gypsum panelsKNAUF GIPS KG·Filed 2022·Application pending·0 cites
- 2058US11787739B2Flour binder for gypsum board, and related methods, product, and slurriesUNITED STATES GYPSUM CO·Filed 2020·Granted Oct 17, 2023·0 cites·17 claims
- 2158US2024182363A1Coated gypsum set stabilizing particles having a hydrophobic gypsum core, gypsum board including same, process for making the particles, and process for making the gypsum boardUNITED STATES GYPSUM CO·Filed 2023·Application pending·0 cites
- 2258US2023339811A1Gypsum set acceleratorUNITED STATES GYPSUM CO·Filed 2022·Application pending·0 cites
- 2357US11834375B2Fire resistant gypsum board and related methodsUNITED STATES GYPSUM CO·Filed 2021·Granted Dec 5, 2023·0 cites·20 claims
- 2457US2023406781A1Gypsum slurry mixer process for enhanced wallboard strengthUNITED STATES GYPSUM CO·Filed 2023·Application pending·0 cites
- 2554US11993054B2Method of preparing gypsum wallboard from high salt gypsum, and related productUNITED STATES GYPSUM CO·Filed 2020·Granted May 28, 2024·0 cites·20 claims
- 2653US11046053B2Composite gypsum board and related methodsUNITED STATES GYPSUM CO·Filed 2019·Granted Jun 29, 2021·0 cites·23 claims
- 2752US11834374B2Accelerator comprising starch, and related board, slurries, and methodsUNITED STATES GYPSUM CO·Filed 2018·Granted Dec 5, 2023·0 cites·12 claims
- 2851US2020024191A1Siloxane polymerization in gypsum wallboardUNITED STATES GYPSUM CO·Filed 2019·Application pending·0 cites
- 2950US2021198148A1Composite gypsum board formed from high-salt stucco and related methodsUNITED STATES GYPSUM CO·Filed 2020·Application pending·0 cites
- 3046US2019092689A1Migrating starch with high cold-water solubility for use in preparing gypsum boardUNITED STATES GYPSUM CO·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →