Inventor
Anthony M. Belka
Inventor
Stillwater, MN, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G08Bprimary
G08BSignalling systems, e.g. personal calling systems62%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes15%
G07FCoin-freed or like apparatus15%
G06TImage data processing or generation, in general8%
PatentTitleYear
6,902,110'Field creation in a magnetic electronic article surveillance system'20056,778,087'Dual axis magnetic field EAS device'20046,696,951'Field creation in a magnetic electronic article surveillance system'20046,486,782'Device for changing the status of dual status magnetic electronic article surveillance markers'20026,438,447'Article inventory tracking apparatus and method'20026,142,375'Apparatus and method for the optical detection of multiple items on a platform'20005,777,884'Article inventory tracking and control system'19985,625,339'Apparatus for changing the status of magnetic markers in an electronic article surveillance system'19974,888,579'False alarm minimization and direction determination methods'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2002Patents assigned to MINNESOTA MINING & MFG (4)· patent assignee history
1989Based in St. Paul, MN, US· patent location history
1997–2005Based in Stillwater, MN, US· patent location history
2000–2005Patents assigned to 3M INNOVATIVE PROPERTIES CO (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3M INNOVATIVE PROPERTIES CO | 5 | 2000–2005 |
| MINNESOTA MINING & MFG | 4 | 1989–2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Stillwater, Minnesota, US | 8 | 1997–2005 |
| St. Paul, Minnesota, US | 1 | 1989 |