Inventor · disambiguated record
Vel Berzin
Also filed as: BERZIN VEL
16 granted patents·684 citations·filing 1986–2008
95Inventor score
Top patents by PatentIndex Score
16 records- 0196US7552777B2Self-energized downhole toolBAKER HUGHES INC·Filed 2005·Granted Jun 30, 2009·100 cites·20 claims
- 0296US7392841B2Self boosting packing elementBAKER HUGHES INC·Filed 2005·Granted Jul 1, 2008·82 cites·9 claims
- 0395US7441596B2Swelling element packer and installation methodBAKER HUGHES INC·Filed 2006·Granted Oct 28, 2008·104 cites·17 claims
- 0483US7806193B2Swellable packer with back-up systemsBAKER HUGHES INC·Filed 2008·Granted Oct 5, 2010·25 cites·15 claims
- 0580US4838349AApparatus for testing selected zones of a subterranean boreBAKER OIL TOOLS INC·Filed 1987·Granted Jun 13, 1989·61 cites·14 claims
- 0679US7661471B2Self energized backup system for packer sealing elementsBAKER HUGHES INC·Filed 2005·Granted Feb 16, 2010·18 cites·20 claims
- 0778US5297633AInflatable packer assemblySNIDER PHILIP M·Filed 1991·Granted Mar 29, 1994·69 cites·21 claims
- 0875US7478679B2Field assembled packerBAKER HUGHES INC·Filed 2006·Granted Jan 20, 2009·16 cites·21 claims
- 0974US4840231AMethod and apparatus for setting an inflatable packerBAKER HUGHES INC·Filed 1988·Granted Jun 20, 1989·46 cites·15 claims
- 1069US4941534AMethod and apparatus for sealing a casing in a subterranean well boreBAKER HUGHES INC·Filed 1989·Granted Jul 17, 1990·40 cites·7 claims
- 1161US4962812AValving system for inflatable packersBAKER HUGHES INC·Filed 1989·Granted Oct 16, 1990·31 cites·6 claims
- 1251US4721157AFluid sampling apparatusBAKER OIL TOOLS INC·Filed 1986·Granted Jan 26, 1988·21 cites·16 claims
- 1347US5271462AZone isolation apparatusBAKER HUGHES INC·Filed 1993·Granted Dec 21, 1993·20 cites·36 claims
- 1447US5201369AReinflatable external casing packerBAKER HUGHES INC·Filed 1991·Granted Apr 13, 1993·22 cites·15 claims
- 1543US5109926AWellbore packer with shearable anti-rotation locking memberBAKER HUGHES INC·Filed 1990·Granted May 5, 1992·20 cites·28 claims
- 1633US5366020AReinflatable external casting packer and method of casingBAKER HUGHES INC·Filed 1993·Granted Nov 22, 1994·9 cites·26 claims
Join the waitlist — get patent alerts
Get an alert when Vel Berzin files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →