Inventor
Donald J. Rotier
Inventor
St. Paul, MN, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Pprimary
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock25%
G02BOptical elements, systems or apparatus25%
F41GWeapon sights13%
G01BMeasuring length, thickness or similar linear dimensions13%
G01KMeasuring temperature13%
G01SRadio direction-finding13%
PatentTitleYear
5,880,888'Helmet mounted display system'19994,859,030'Helmet mounted display with improved brightness'19894,829,250'Magnetic direction finding device with improved accuracy'19894,038,870'Air movement measuring apparatus'19774,031,756'Ultrasonic air movement and temperature measuring apparatus'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1989Patents assigned to HONEYWELL INC (4)· patent assignee history
1977–1999Based in St. Paul, MN, US· patent location history
1999Patents assigned to HUGHES AIRCRAFT CO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HONEYWELL INC | 4 | 1977–1989 |
| HUGHES AIRCRAFT CO | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| St. Paul, Minnesota, US | 5 | 1977–1999 |