Stephen C. Mitchell — 13 Patents at Rotex

Stephen C. Mitchell has been granted 13 US patents while listed as an inventor at Rotex. The first was granted in 1980 and the most recent in July 2025. Stephen C. Mitchell ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Stephen C. Mitchell in Chicago, IL, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12361393	Optical receipt processing	Pavel Melnichuk	2025-07-15
11887070	Optical receipt processing	Pavel Melnichuk	2024-01-30	$3,807,000
11538263	Optical receipt processing	Pavel Melnichuk	2022-12-27	$2,269,000
10891474	Optical receipt processing	Pavel Melnichuk	2021-01-12	$4,918,000
10229314	Optical receipt processing	Pavel Melnichuk	2019-03-12	$6,346,000
6763948	Screening machine with acceleration modification	Brady P. Ballman, Daniel J. Ferris, III, Jeff Pielage, Anthony Joseph Yanka	2004-07-20
5887726	Coupling for connecting feed spout to screening machine	—	1999-03-30
5730297	Screening machine with improved base force reduction	William E. Lower	1998-03-24
5301814	Increasing the relative motion of a screen deck	William E. Lower	1994-04-12
5074012	Self-locking hold-down clamp	—	1991-12-24
5069778	Screen deck with pedestal mounted slats	William E. Lower	1991-12-03
4802591	Louvered chip screener	William E. Lower, W. Nash McCauley, Roger C. Robins, Steven Schmidt	1989-02-07
4234416	Feed stream splitter for multiple deck screening machine	William E. Lower, Jeremy F. Simpson	1980-11-18

Stephen C. Mitchell — 13 Patents

Issued Patents All Time

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