Ernst Schmidt — 21 Patents at 3M

Ernst Schmidt has been granted 21 US patents while listed as an inventor at 3M. The first was granted in 1988 and the most recent in November 2024. Ernst Schmidt ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Ernst Schmidt in Antwerpen, NV, BE.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12151211	Electro-pressure membrane method for recovery and concentration of lithium from aqueous sources	—	2024-11-26
11655173	Methods of separating and isolating water and other desired constituents from oilfield produced brines	—	2023-05-23
10920417	Fire-resistant building joint system	John C. Hulteen, George W. Frost, Robert E. Gestner, Richard J. Haffner	2021-02-16	$68,262,000
10899646	Methods of separating and isolating water and other desired constituents from oilfield produced brines for reuse	—	2021-01-26
10823313	Smoke and sound barrier for a building penetration	John C. Hulteen, George W. Frost, Richard J. Haffner	2020-11-03	$55,691,000
10662644	Penetration firestop system	John C. Hulteen, George W. Frost, Richard J. Haffner	2020-05-26	$33,730,000
10597867	Smoke and sound barrier for a building joint system	John C. Hulteen, George W. Frost, Richard J. Haffner	2020-03-24	$44,186,000
8636076	Method of firestopping a through-penetration using a fusible inorganic blended-fiber web	Brandon L. Cordts, George W. Frost	2014-01-28	$18,361,000
8161696	Sleeve system and method of using	Ted D Colwell, Kristen A. Jensen, Rebecca C. Lee	2012-04-24	$35,823,000
8069623	Sleeve system and method of using	Ted D Colwell, Kristen A. Jensen, Rebecca C. Lee	2011-12-06	$10,958,000
7501064	Integrated electro-pressure membrane deionization system	Alois Sferrazza, Michael E. Williams	2009-03-10
7322782	Device for fixing and/or positioning objects in a transport container	—	2008-01-29
7197637	Authorization process using a certificate	Burkhard Kuhls	2007-03-27
7026477	Process for preparing substituted phenylsulfonylureas from sulfonyl halides	Jan Vermehren, Mark James Ford, Richard Foster, Ian A. Bourne	2006-04-11
6816971	Signature process	Burkhard Kuhls	2004-11-09
6537436	System for electrodialysis treatment of liquids	Michael E. Williams, Brian Schmidt, James Donald Schmidt, Erich Schmidt	2003-03-25
6274020	Electrodialysis membrane and gasket stack system	Michael E. Williams, Brian Schmidt, James Donald Schmidt, Erich Schmidt	2001-08-14
5887342	Method for making an electronic control unit	Reinhold Maier	1999-03-30
5839865	Device for the nonskid transport of objects on loading surfaces of motor vehicles	—	1998-11-24
5019713	Radiation therapy device with moveable aperture plate	—	1991-05-28
4716917	Tank washing system	—	1988-01-05

Ernst Schmidt — 21 Patents

Issued Patents All Time

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