Inventor
Seth A. Lieffort
Inventor
Eagan, MN, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Kprimary
G06KGraphical data reading33%
G08BSignalling systems, e.g. personal calling systems17%
G08CTransmission systems for measured values, control or similar signals17%
H01QAntennas, i.e. radio aerials17%
B82YSpecific uses or applications of nanostructures8%
G02BOptical elements, systems or apparatus8%
PatentTitleYear
7,421,245'Field-shaping shielding for radio frequency identification (RFID) system'20087,417,599'Multi-loop antenna for radio frequency identification (RFID) communication'20087,405,663'System for detecting radio-frequency identification tags'20087,119,692'System for detecting radio-frequency identification tags'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2008Patents assigned to 3M INNOVATIVE PROPERTIES CO (4)· patent assignee history
2006–2008Based in Eagan, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3M INNOVATIVE PROPERTIES CO | 4 | 2006–2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Eagan, Minnesota, US | 4 | 2006–2008 |