Assignee
TECHNAFLOW INC
US4 patents
Top patents by PatentIndex Score
US5560587AOct 1, 1996
Gate valve sleeve
TECHNAFLOW INC34 citations90
US5338006AAug 16, 1994
Gate valve with improved seal unit
TECHNAFLOW INC47 citations90
US5979874ANov 9, 1999
Split knife gate valve having a uniformly compressed and constrained resilient gate seat and method for producing the same
TECHNAFLOW INC23 citations88
US5653423AAug 5, 1997
Knife gate valve with mechanically retained gate seat
TECHNAFLOW INC57 citations88