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Inventor

Michael J. Kieffer

Inventor
Apple Valley, MN, US

Overview

9→
Patents
2000–2012
Patent span
Physics
Primary field (CPC G)

Patents· 9 as inventor

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

G06Qprimary
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes32%
G07FCoin-freed or like apparatus32%
G07GRegistering the receipt of cash, valuables, or tokens32%
G08BSignalling systems, e.g. personal calling systems4%
PatentTitleYear
8,322,614'System for processing financial transactions in a self-service library terminal'20128,002,182'System for processing financial transactions in a self-service library terminal'20116,857,568'Terminal for libraries and the like'20056,750,777'Terminal for libraries and the like'20046,549,141'Terminal for libraries and the like'20036,542,070'Terminal for libraries and the like'20036,464,138'Terminal for libraries and the like'20026,369,709'Terminal for libraries and the like'20026,057,763'Method and apparatus for activating and deactivating electromagnetic article surveillance markers'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2012Patents assigned to 3M INNOVATIVE PROPERTIES CO (6)· patent assignee history
2000–2012Based in Apple Valley, MN, US· patent location history
2002–2003Patents assigned to MINNESOTA MINING & MFG (3)· patent assignee history
2012Patents assigned to FERGEN JAMES E (1)· patent assignee history
2012Patents assigned to GRUNES MITCHELL B (1)· patent assignee history
2012Patents assigned to KIEFFER MICHAEL J (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
3M INNOVATIVE PROPERTIES CO62000–2012
MINNESOTA MINING & MFG32002–2003
FERGEN JAMES E12012
GRUNES MITCHELL B12012
KIEFFER MICHAEL Jself12012
Locations
LocationPatentsSpan
Apple Valley, Minnesota, US92000–2012