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USPTO Patent Rankings Data through Dec 31, 2025
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John A. Leys — 28 Patents

ENEntegris: 23 patents #12 of 643Top 2%
Oracle: 2 patents #5,565 of 14,854Top 40%
EHEnterprise Holdings: 1 patents #53 of 159Top 35%
FLFluoroware: 1 patents #34 of 68Top 50%
Chaska, MN: #15 of 361 inventorsTop 5%
Minnesota: #2,190 of 52,454 inventorsTop 5%
Overall (All Time): #134,628 of 4,157,543Top 4%
28 Patents All Time
John A. Leys has been granted 28 US patents while listed as an inventor at Entegris. The first was granted in 1999 and the most recent in November 2024. John A. Leys ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list John A. Leys in Chaska, MN, US.

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12135108 Electrostatic discharge mitigation tubing Barry Gregerson 2024-11-05 $125,352,000
12117106 Fluid circuit with integrated electrostatic discharge mitigation 2024-10-15 $60,078,000
12066121 Electrostatic discharge mitigation valve JaeHan Shim 2024-08-20 $42,438,000
11746912 Welded check valve 2023-09-05 $81,157,000
11661249 Multi piece fitment for a fluid container Gregory Bores, Michael Schleicher 2023-05-30 $189,153,000
11384879 Fluid circuit with integrated electrostatic discharge mitigation 2022-07-12 $121,262,000
11339063 Fluid circuit with integrated electrostatic discharge mitigation James C. Linder, Jeffrey J. McKenzie, Barry Gregerson, Brett Christopher Reichow 2022-05-24 $53,104,000
11313482 Welded check valve 2022-04-26 $38,831,000
11280429 Valve and valve member for controlling fluid flow 2022-03-22 $134,103,000
10584813 Anti-rotation device for hydraulic connectors Michael Schleicher, Jeffrey J. McKenzie 2020-03-10 $34,549,000
10569390 High torque polymer fittings Michael Schleicher, Jeffrey J. McKenzie, Steven P. Kolbow 2020-02-25 $21,039,000
10443999 Connection verification tool Michael Schleicher 2019-10-15 $22,333,000
10352491 Anti-rotation device for hydraulic connectors Michael Schleicher, Jeffrey J. McKenzie 2019-07-16 $9,806,000
D811183 Wrench Michael Schleicher, Jeffrey J. McKenzie 2018-02-27
D790936 Wrench Michael Schleicher, Jeffrey J. McKenzie 2017-07-04
9556012 Pressurized system for dispensing fluids John M. Hennen, Michael L. Johnson 2017-01-31 $15,835,000
D766720 Breakseal for a liquid dispensing system Donald D. Ware, Greg Nelson, Amy Koland, Bruce Musolf, Michael Allen +4 more 2016-09-20
8844774 Pressurized system for dispensing fluids John M. Hennen, Michael L. Johnson 2014-09-30 $4,649,000
8726935 Valve manifold assembly 2014-05-20
8689817 Welded diaphragm valve Mike Schleicher 2014-04-08 $8,243,000
7913050 Fencing using a hierarchical relationship Prasad V. Bagal, Gilberto Arnaiz 2011-03-22 $33,950,000
7792977 Method for fencing shared resources from cluster nodes David Brower, Gary Young 2010-09-07 $28,316,000
7063304 Extended stroke valve and diaphragm 2006-06-20 $9,200,000
6973705 Fluoropolymer flowmeter Steven P. Kolbow, Steven Fischer, Carlos Cadavid, Todd M. Ulschmid 2005-12-13 $8,606,000
6758104 Fluoropolymer flowmeter Steven P. Kolbow, Steve Fischer, Carlos Cadavid, Todd M. Ulschmid 2004-07-06 $3,709,000