Assignee
JOHNSON FILTRATION SYSTEMS
FR·7 granted patents·343 citations·filing 1988–2001
Top patents by PatentIndex Score
7 records- 0193US5156738AApparatus for uniformly distributing gas and/or liquid in an underdrain lateral systemJOHNSON FILTRATION SYSTEMS·Filed 1991·Granted Oct 20, 1992·123 cites·20 claims
- 0283US5118419ASlotted scallop-shaped underdrain screened lateral elementsJOHNSON FILTRATION SYSTEMS·Filed 1991·Granted Jun 2, 1992·55 cites·6 claims
- 0380US5015383ASlotted screen scallops for high loading pressures and method of making sameJOHNSON FILTRATION SYSTEMS·Filed 1989·Granted May 14, 1991·38 cites·8 claims
- 0477US6851560B2Drain element comprising a liner consisting of hollow rods for collecting in particular hydrocarbonsJOHNSON FILTRATION SYSTEMS·Filed 2001·Granted Feb 8, 2005·66 cites·7 claims
- 0574US5006228AMounting system for increasing the wear life of a vibrating screen panelJOHNSON FILTRATION SYSTEMS·Filed 1990·Granted Apr 9, 1991·29 cites·17 claims
- 0652US4819722AMetal well screen assembly with plastic end fitting and method of attaching sameJOHNSON FILTRATION SYSTEMS·Filed 1988·Granted Apr 11, 1989·18 cites·15 claims
- 0744US6785964B2Method for making a mechanical screen cylinderJOHNSON FILTRATION SYSTEMS·Filed 2001·Granted Sep 7, 2004·14 cites·3 claims
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