Inventor · disambiguated record
Marvin Echols
Also filed as: ECHOLS MARVIN · ECHOLS MARVIN C
5 granted patents·127 citations·filing 1974–1995
83Inventor score
Files withZAP LOK SYSTEMS INTERNATIONAL2BETZDEARBORN INC1ECHOLS MARVIN1SUPERIOR I D TUBE CLEANERS INC1
Top patents by PatentIndex Score
5 records- 0183US4569097ATube cleanersSUPERIOR I D TUBE CLEANERS INC·Filed 1983·Granted Feb 11, 1986·45 cites·6 claims
- 0272US4120083AMethod of pipe joiningZAP LOK SYSTEMS INTERNATIONAL·Filed 1976·Granted Oct 17, 1978·34 cites·7 claims
- 0365US4064619AMethod of joining plastic coated pipeZAP LOK SYSTEMS INTERNATIONAL·Filed 1976·Granted Dec 27, 1977·28 cites·6 claims
- 0442US3946455ACleaning device for tubesECHOLS MARVIN·Filed 1974·Granted Mar 30, 1976·11 cites·2 claims
- 0539US5695300AAdjustable recovery boom and systemBETZDEARBORN INC·Filed 1995·Granted Dec 9, 1997·9 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →