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Inventor

Stephen Andrew Mitchell

Inventor
Chicago, IL, US

Overview

2→
Patents
2019–2021
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B01Dprimary
B01DSeparation17%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids17%
G06FElectric digital data processing17%
G06KGraphical data reading17%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes17%
G06VImage or video recognition or understanding17%
PatentTitleYear
10,891,474Optical receipt processing202110,272,377Gas compressor filter element2019

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2019Patents assigned to INGERSOLL RAND CO (1)· patent assignee history
2019Based in Concord, NC, US· patent location history
2021Patents assigned to GROUPON INC (1)· patent assignee history
2021Based in Chicago, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GROUPON INC12021
INGERSOLL RAND CO12019
Locations
LocationPatentsSpan
Chicago, Illinois, US12021
Concord, NC, US12019