Inventor
SCHAEFER WILLIAM L
US23 patents
⚠️ This page may combine multiple inventors who share the name “SCHAEFER WILLIAM L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PPG INDUSTRIES INC
14 patentsUS4735642AApr 5, 1988
Hollow glass fiber bushing assembly
PPG INDUSTRIES INC65 citations95
US4964891AOct 23, 1990
Programmably controlled fiber glass strand feeders and improved methods for making glass fiber mats
PPG INDUSTRIES INC33 citations92
US4045196AAug 30, 1977
Method and apparatus for chopping glass strands
PPG INDUSTRIES INC32 citations92
US4043779AAug 23, 1977
Apparatus for chopping coated glass fibers
PPG INDUSTRIES INC27 citations82
US5797557AAug 25, 1998
Apparatus, systems and methods for transporting a cylindrical package
PPG INDUSTRIES INC19 citations80
US3996032ADec 7, 1976
Insulated heater tray for making glass fibers and method for using same
PPG INDUSTRIES INC32 citations80
US4955999ASep 11, 1990
Stationary strand deflector for continuous strand manufacture
PPG INDUSTRIES INC10 citations73
US4566888AJan 28, 1986
Bushing construction
PPG INDUSTRIES INC11 citations73
US4088469AMay 9, 1978
Environmental control of a glass fiber forming bushing
PPG INDUSTRIES INC14 citations73
US4024647AMay 24, 1977
Temperature controlled heater tray
PPG INDUSTRIES INC9 citations73
US4591371AMay 27, 1986
Glass fiber forming bushing construction
PPG INDUSTRIES INC2 citations62
US4704149ANov 3, 1987
Hollow fiber bushing tip
PPG INDUSTRIES INC6 citations61
US4071342AJan 31, 1978
Apparatus for forming glass fibers
PPG INDUSTRIES INC5 citations61
US3965563AJun 29, 1976
Method and apparatus for removing cutting blades from an annular cutting head
PPG INDUSTRIES INC1 citations51
FIGGIE INT INC
6 patentsUSD335203SMay 4, 1993
Warm-up suit
FIGGIE INT INC8 citations71
USD335205SMay 4, 1993
Warm-up suit
FIGGIE INT INC3 citations60
USD335204SMay 4, 1993
Warm-up suit
FIGGIE INT INC2 citations60
USD333374SFeb 23, 1993
Warm-up suit
FIGGIE INT INC5 citations60
USD332686SJan 26, 1993
Warm-up suit
FIGGIE INT INC3 citations60
USD335945SJun 1, 1993
Warm-up suit
FIGGIE INT INC0 citations50