AL

Allen C. Ludwig

SI Southwest Research Institute: 3 patents #198 of 935Top 25%
📍 San Antonio, TX: #991 of 5,017 inventorsTop 20%
🗺 Texas: #28,318 of 125,132 inventorsTop 25%
Overall (All Time): #1,059,447 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5264003 Gelled fuel heat source Jon Andrew Ross 1993-11-23
5089052 Emulsification of rock asphalt 1992-02-18
4475953 Emulsion and method of making same Larry W. Wolter, Henry F. Frazier 1984-10-09
RE31575 Sulfur compounds and method of making same John M. Dale, Henry F. Frazier 1984-05-01
4290816 Sulfur compounds and method of making same John M. Dale, Henry F. Frazier 1981-09-22