Inventor
Steven M. Hamer
Inventor
Willernie, MN, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G08Gprimary
G08GTraffic control systems70%
A63FCard, board, or roulette games10%
G06FElectric digital data processing10%
G07FCoin-freed or like apparatus10%
PatentTitleYear
5,830,064'Apparatus and method for distinguishing events which collectively exceed chance expectations and thereby controlling an output'19985,602,739'Vehicle tracking system incorporating traffic signal preemption'19975,539,398'GPS-based traffic control preemption system'19965,361,064'Vehicle detector with power main noise compensation'19945,202,683'Optical traffic preemption detector'19935,187,476'Optical traffic preemption detector circuitry'19935,172,113'System and method for transmitting data in an optical traffic preemption system'19925,153,525'Vehicle detector with series resonant oscillator drive'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–1997Patents assigned to MINNESOTA MINING & MFG (7)· patent assignee history
1992–1997Based in Willernie, MN, US· patent location history
1998Patents assigned to PEAR INC (1)· patent assignee history
1998Based in Mahtomedi, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MINNESOTA MINING & MFG | 7 | 1992–1997 |
| PEAR INC | 1 | 1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Willernie, Minnesota, US | 7 | 1992–1997 |
| Mahtomedi, Minnesota, US | 1 | 1998 |