Inventor
William L. Stevens
Inventor
Wheaton, IL, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Rprimary
G01RMeasuring electric variables33%
B60TVehicle brake control systems or parts thereof17%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general17%
F16LPipes17%
G10HElectrophonic musical instruments17%
PatentTitleYear
5,789,914'Onboard digital locomotive horsepower multimeter'19985,627,336'Percussion instrument having an electromagnetic sensor'19975,557,198'Onboard digital locomotive multimeter'19965,016,730'Acoustic filter having acoustic isolation of internal flow element'19914,794,267'Anti-lock braking system check valve with build orifice'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988Patents assigned to ALLIED SIGNAL INC (1)· patent assignee history
1988Based in Dowagiac, MI, US· patent location history
1991Patents assigned to TOLO INC (1)· patent assignee history
1991Based in Santa Ana, CA, US· patent location history
1996–1998Patents assigned to MATTHEWS JACK W (2)· patent assignee history
1996–1998Based in Wheaton, IL, US· patent location history
1997Patents assigned to ISACKSON NADENE (1)· patent assignee history
1997Based in Janesville, WI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MATTHEWS JACK W | 2 | 1996–1998 |
| ALLIED SIGNAL INC | 1 | 1988 |
| ISACKSON NADENE | 1 | 1997 |
| TOLO INC | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wheaton, Illinois, US | 2 | 1996–1998 |
| Janesville, WI, US | 1 | 1997 |
| Santa Ana, California, US | 1 | 1991 |
| Dowagiac, MI, US | 1 | 1988 |