Inventor
HAMMEL JOSEPH J
11 patents
⚠️ This page may combine multiple inventors who share the name “HAMMEL JOSEPH J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PPG INDUSTRIES INC
9 patentsUS4853001AAug 1, 1989
Porous inorganic siliceous-containing gas enriching material and process of manufacture and use
PPG INDUSTRIES INC56 citations95
US4282023AAug 4, 1981
Glass melting enhancement by toroidal batch shaping
PPG INDUSTRIES INC72 citations95
US4933307AJun 12, 1990
Silica-rich porous substrates with reduced tendencies for breaking or cracking
PPG INDUSTRIES INC64 citations93
US3972721AAug 3, 1976
Thermally stable and crush resistant microporous glass catalyst supports and methods of making
PPG INDUSTRIES INC35 citations91
US4842620AJun 27, 1989
Process of gas enrichment with porous siliceous-containing material
PPG INDUSTRIES INC42 citations89
US3972720AAug 3, 1976
Phase separatable borosilicate glass compositions
PPG INDUSTRIES INC16 citations72
US4270945AJun 2, 1981
Method of melting flat glass using nitrates to suppress sulfurous emissions
PPG INDUSTRIES INC14 citations71
US4002446AJan 11, 1977
Glass bead forming method
PPG INDUSTRIES INC7 citations69
US4298370ANov 3, 1981
Method of improving glass melting by ablation enhancement
PPG INDUSTRIES INC6 citations62