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USPTO Patent Rankings Data through Dec 31, 2025
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John E. Schroeder — 18 Patents

KEKalsi Engineering: 12 patents #3 of 16Top 20%
VMVita-Mix Management: 1 patents #48 of 67Top 75%
Northrop Grumman: 1 patents #1,512 of 2,250Top 70%
Chesterfield, MO: #279 of 6,461 inventorsTop 5%
Missouri: #940 of 23,789 inventorsTop 4%
Overall (All Time): #245,716 of 4,157,543Top 6%
18 Patents All Time
John E. Schroeder has been granted 18 US patents while listed as an inventor at Kalsi Engineering. The first was granted in 1985 and the most recent in August 2021. John E. Schroeder ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list John E. Schroeder in Chesterfield, MO, US.

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11096523 Bifurcated sealing member Travis Maytubby 2021-08-24
9121504 Rotary seal with improved film distribution Lannie L. Dietle 2015-09-01
9109703 Hydrodynamic backup ring Lannie L. Dietle, Aaron Richie, Victor Garcia, Jr., Jeffrey D. Gobeli 2015-08-18
9103445 Rotary seal with truncated wave form Lannie L. Dietle 2015-08-11
9086151 Low torque hydrodynamic lip geometry for rotary seals Lannie L. Dietle 2015-07-21
8550467 Rotary seal with improved film distribution Lannie L. Dietle 2013-10-08
8505924 Rotary shaft sealing assembly Lannie L. Dietle, Manmohan S. Kalsi, Patricio D. Alvarez 2013-08-13
8075000 Composite, high temperature, dynamic seal and method of making same Brian A. James, Rome Richardson, Lannie L. Dietle 2011-12-13
8056904 Low torque hydrodynamic lip geometry for bi-directional rotation seals Lannie L. Dietle 2011-11-15
7798496 Rotary shaft sealing assembly Lannie L. Dietle, Manmohan S. Kalsi, Patricio D. Alvarez 2010-09-21
7770898 Stabilizing geometry for hydrodynamic rotary seals Lannie L. Dietle 2010-08-10
7562878 Low torque hydrodynamic lip geometry for bi-directional rotation seals Lannie L. Dietle 2009-07-21
6561520 Hydrodynamic rotary coupling seal Manmohan S. Kalsi, Lannie Dietle, William T. Conroy 2003-05-13
5592186 Sectional filter assembly William J. Hoofe, IV 1997-01-07 $5,578,000
5352565 Method of forming apertures into thin metallic foils 1994-10-04
5127601 Conformal lightning shield and method of making 1992-07-07
4796153 Lightning diversion strips for aircraft Myron P. Amason, Evert C. Alsenz 1989-01-03
4560562 Marshmallow sheet and packaging arrangement 1985-12-24