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Lev Alexander Prociw — 168 Patents

DEDelavan: 73 patents #2 of 131Top 2%
RTX (Raytheon): 53 patents #78 of 15,912Top 1%
CNCollins Engine Nozzles: 41 patents #2 of 50Top 4%
Hamilton Sundstrand: 1 patents #1,184 of 2,079Top 60%
Johnston, IA: #2 of 247 inventorsTop 1%
Iowa: #8 of 15,303 inventorsTop 1%
Overall (All Time): #4,910 of 4,157,543Top 1%
168 Patents All Time
Lev Alexander Prociw has been granted 168 US patents while listed as an inventor at Delavan. The first was granted in 1996 and the most recent in September 2025. Lev Alexander Prociw ranks #4,910 of 4,157,543 US inventors in our database (top 0.12%). Patent records list Lev Alexander Prociw in Johnston, IA, US.

Issued Patents All Time

Showing 1–25 of 168 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12416410 Fuel injectors for multipoint arrays Jason A. Ryon, Gregory A. Zink 2025-09-16
12313005 Fuel systems for torch ignition devices Jason A. Ryon, Brandon P. Williams 2025-05-27
12269053 Fluid conduits with heat shielding Jason A. Ryon 2025-04-08
12241419 Fuel injectors assemblies with tangential flow component Jason A. Ryon, Brandon P. Williams 2025-03-04
12196135 Sectional fuel manifolds Jason A. Ryon, Gregory A. Zink 2025-01-14
12123355 Surface igniter cooling system Jason A. Ryon 2024-10-22
12092333 Radially oriented internally mounted continuous ignition device Jason A. Ryon, Brandon P. Williams 2024-09-17
11994297 Fluid nozzles with heat shielding Jason A. Ryon 2024-05-28
11994290 Heat transfer arrangements and methods of making heat transfer arrangements Jason A. Ryon 2024-05-28
11982237 Torch igniter cooling system Jason A. Ryon 2024-05-14
11965654 Cooling in staged fuel system Timothy Griffith 2024-04-23
11913646 Fuel injector systems for torch igniters Jason A. Ryon 2024-02-27
11906167 Fuel injectors for multipoint arrays Jason A. Ryon, Gregory A. Zink 2024-02-20
11898493 Systems for fuel injectors with fuel air heat exchangers Jason A. Ryon, Gregory A. Zink, Brandon P. Williams 2024-02-13
11885496 Fluid distributors for fluid nozzles Jason A. Ryon, Philip E. O. Buelow 2024-01-30
11859821 Passive secondary air assist nozzles Jason A. Ryon, Brandon P. Williams 2024-01-02
11852075 Fuel injector systems and support structures Jacob Greenfield, Jason A. Ryon 2023-12-26
11846425 Dual fuel gas turbine engine pilot nozzles Jason A. Ryon, Jacob Greenfield 2023-12-19
11846422 Systems for fuel injectors with fuel air heat exchangers Jason A. Ryon, Gregory A. Zink, Brandon P. Williams 2023-12-19
11788723 Fuel injection for integral combustor and turbine vane Jason A. Ryon 2023-10-17
11773784 Fuel injectors with torch ignitors Jason A. Ryon, Brandon P. Williams 2023-10-03
11761634 Fuel injector assemblies Jason A. Ryon, Jacob Greenfield 2023-09-19
11754289 Axially oriented internally mounted continuous ignition device: removable nozzle Jason A. Ryon, Brandon P. Williams 2023-09-12
11719162 Torch igniter cooling system Jason A. Ryon 2023-08-08
11713717 Sectional fuel manifolds Jason A. Ryon, Gregory A. Zink 2023-08-01

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