Inventor · disambiguated record
Lev Tunkel
Also filed as: TUNKEL LEV · TUNKEL LEV E
11 granted patents·3 pending applications·326 citations·filing 1993–2019
92Inventor score
Files withUNIVERSAL VORTEX INC14
Top patents by PatentIndex Score
14 records- 0185US5582012AMethod of natural gas pressure reduction on the city gate stationsUNIVERSAL VORTEX INC·Filed 1995·Granted Dec 10, 1996·59 cites·10 claims
- 0285US5561982AMethod for energy separation and utilization in a vortex tube which operates with pressure not exceeding atmospheric pressureUNIVERSAL VORTEX INC·Filed 1995·Granted Oct 8, 1996·55 cites·11 claims
- 0383US6289679B1Non-freeze enhancement in the vortex tubeUNIVERSAL VORTEX INC·Filed 2000·Granted Sep 18, 2001·37 cites·6 claims
- 0479US5911740AMethod of heat transfer enhancement in a vortex tubeUNIVERSAL VORTEX INC·Filed 1997·Granted Jun 15, 1999·46 cites·16 claims
- 0566US2020096237A1Vortex tubeUNIVERSAL VORTEX INC·Filed 2019·Application pending·0 cites
- 0664US6082116AVortex pilot gas heaterUNIVERSAL VORTEX INC·Filed 1998·Granted Jul 4, 2000·27 cites·4 claims
- 0762US5327728AMethod of designing a vortex tube for energy separationUNIVERSAL VORTEX INC·Filed 1993·Granted Jul 12, 1994·22 cites·3 claims
- 0862US2018259227A1Vortex tubeUNIVERSAL VORTEX INC·Filed 2018·Application pending·0 cites
- 0955US5749231ANon-freezing vortex tubeUNIVERSAL VORTEX INC·Filed 1996·Granted May 12, 1998·26 cites·23 claims
- 1053US11493239B2Method for reducing the energy necessary for cooling natural gas into liquid natural gas using a non-freezing vortex tube as a precooling deviceUNIVERSAL VORTEX INC·Filed 2019·Granted Nov 8, 2022·0 cites·17 claims
- 1152US5819541AMethod of beverage cooling/heating on vehiclesUNIVERSAL VORTEX INC·Filed 1997·Granted Oct 13, 1998·24 cites·3 claims
- 1251US2016158900A1Vortex TubeUNIVERSAL VORTEX INC·Filed 2014·Application pending·0 cites
- 1348US5937654AVortex tube for snow makingUNIVERSAL VORTEX INC·Filed 1997·Granted Aug 17, 1999·15 cites·10 claims
- 1441US5950436AMethod of beverage cooling/heating on vehiclesUNIVERSAL VORTEX INC·Filed 1998·Granted Sep 14, 1999·15 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →