Inventor · disambiguated record
Hayden Leason
Also filed as: LEASON HAYDEN · LEASON HAYDEN L
9 granted patents·810 citations·filing 1977–1989
92Inventor score
Files withFILTERTEK INC9
Top patents by PatentIndex Score
9 records- 0198US4113627AProcess for making hermetically sealed filter units and filters made therebyFILTERTEK INC·Filed 1977·Granted Sep 12, 1978·239 cites·13 claims
- 0297US4749003ACenter flow check valveFILTERTEK INC·Filed 1987·Granted Jun 7, 1988·145 cites·11 claims
- 0397US4414172AProcess and apparatus for sealing a plurality of filter elementsFILTERTEK INC·Filed 1982·Granted Nov 8, 1983·151 cites·14 claims
- 0495US5049274AFriction welding process and filter formed therebyFILTERTEK INC·Filed 1989·Granted Sep 17, 1991·97 cites·22 claims
- 0593US4828694AFilter with filtration envelope spacing meansFILTERTEK INC·Filed 1988·Granted May 9, 1989·96 cites·23 claims
- 0677US4601820ALow-profile inline filterFILTERTEK INC·Filed 1984·Granted Jul 22, 1986·34 cites·18 claims
- 0774US4400277ALow-profile inline filterFILTERTEK INC·Filed 1981·Granted Aug 23, 1983·32 cites·6 claims
- 0842USD310421SFlat brick border sectionFILTERTEK INC·Filed 1987·Granted Sep 4, 1990·4 cites·1 claims
- 0932US4547190AInlet blood filter assemblyFILTERTEK INC·Filed 1982·Granted Oct 15, 1985·12 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →