Michael E. Cropp — 12 Patents at IBM

Michael E. Cropp has been granted 12 US patents while listed as an inventor at IBM. The first was granted in 1989 and the most recent in March 2025. Michael E. Cropp ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Michael E. Cropp in Austin, MN, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12245618	Brine without phosphates and either salt free or low salt	Dale R. Hunt, William R. Fielding	2025-03-11
7117060	Method of improving production through cost of yield measurement	Thomas A. McPhee, Donald W. DiAngelo, Alberto H. Gay, Carmella Pemberton, Joseph Saltarelli +2 more	2006-10-03	$4,350,000
6351871	Aqueous quaternary ammonium hydroxide as a screening mask cleaner	Krishna G. Sachdev, John T. Butler, Donald W. DiAngelo, John F. Harmuth, James N. Humenik +7 more	2002-03-05	$26,874,000
6280527	Aqueous quaternary ammonium hydroxide as a screening mask cleaner	Krishna G. Sachdev, John T. Butler, Donald W. DiAngelo, John F. Harmuth, James N. Humenik +7 more	2001-08-28	$18,210,000
6238741	Single mask screening process	James M. Blazick, James N. Humenik, Gerald H. Leino, Jawahar P. Nayak, Frank V. Ranalli +5 more	2001-05-29	$28,465,000
6177184	Method of making an interface layer for stacked lamination sizing and sintering	Jon A. Casey, Michael A. Cohn, Candace A. Sullivan, Robert J. Sullivan, Andrew H. Vogel	2001-01-23	$22,404,000
6032683	System for cleaning residual paste from a mask	Jon A. Casey, Donald W. DiAngelo, John F. Harmuth, John U. Knickerbocker, David C. Long +8 more	2000-03-07	$24,867,000
5951917	Conductive paste for large greensheet screening including high thixotropic agent content	Jawahar P. Nayak, John M. Wargo, Nancy A. Wier-Cavalieri, Charles W. Hunter, Jr.	1999-09-14	$25,256,000
5916374	Optimized in-line mask cleaning system	Jon A. Casey, Donald W. DiAngelo, John F. Harmuth, John U. Knickerbocker, David C. Long +8 more	1999-06-29	$36,828,000
5800761	Method of making an interface layer for stacked lamination sizing and sintering	Jon A. Casey, Michael A. Cohn, Candace A. Sullivan, Robert J. Sullivan, Andrew H. Vogel	1998-09-01	$8,247,000
5783113	Conductive paste for large greensheet screening including high thixotropic agent content	Jawahar P. Nayak, John M. Wargo, Nancy A. Wier-Cavalieri, Charles W. Hunter, Jr.	1998-07-21	$12,143,000
4808435	Screen printing method for producing lines of uniform width and height	Phillip De Prado, Kamalesh S. Desai	1989-02-28	$11,803,000

Michael E. Cropp — 12 Patents

Issued Patents All Time

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