Inventor · disambiguated record
Douglas J. Volden
Also filed as: VOLDEN DOUGLAS · VOLDEN DOUGLAS J
6 granted patents·282 citations·filing 1990–2023
85Inventor score
Technology areasF16J
Files withCRANE JOHN INC6
Top patents by PatentIndex Score
6 records- 0193US5713576AGas lubricated barrier sealCRANE JOHN INC·Filed 1994·Granted Feb 3, 1998·77 cites·26 claims
- 0292US5249812ABarrier seal systemsCRANE JOHN INC·Filed 1990·Granted Oct 5, 1993·83 cites·4 claims
- 0390US5375853ASecondary containment sealCRANE JOHN INC·Filed 1992·Granted Dec 27, 1994·65 cites·15 claims
- 0486US6210107B1Barrier seal systemsCRANE JOHN INC·Filed 1995·Granted Apr 3, 2001·55 cites·11 claims
- 0568US12181050B2Ring with recirculating grooves for dry gas sealCRANE JOHN INC·Filed 2023·Granted Dec 31, 2024·0 cites·24 claims
- 0660US7857319B2Mechanical seal with banded ringCRANE JOHN INC·Filed 2007·Granted Dec 28, 2010·2 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →