Inventor
John W. Cassen
Inventor
Sykesville, MD, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Qprimary
H01QAntennas, i.e. radio aerials60%
G01SRadio direction-finding40%
PatentTitleYear
7,583,238'Radome for endfire antenna arrays'20096,278,400'Dual channel microwave transmit/receive module for an active aperture of a radar system'20016,114,986'Dual channel microwave transmit/receive module for an active aperture of a radar system'20006,097,335'Transmit/receive module having multiple transmit/receive paths with shared circuitry'20006,094,161'Dual channel microwave transmit/receive module for an active aperture of a radar system'20006,034,633'Transmit/receive module having multiple transmit/receive paths with shared circuitry'20006,005,531'Antenna assembly including dual channel microwave transmit/receive modules'19995,175,560'Notch radiator elements'19924,547,776'Loop antenna with improved balanced feed'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985Patents assigned to US NAVY (1)· patent assignee history
1985Based in Glen Burnie, MD, US· patent location history
1992Patents assigned to WESTINGHOUSE ELECTRIC CORP (1)· patent assignee history
1992–2009Based in Sykesville, MD, US· patent location history
1999–2001Patents assigned to NORTHROP GRUMMAN CORP (6)· patent assignee history
2009Patents assigned to NORTHROP GRUMMAN SYSTEMS CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NORTHROP GRUMMAN CORP | 6 | 1999–2001 |
| NORTHROP GRUMMAN SYSTEMS CORP | 1 | 2009 |
| US NAVY | 1 | 1985 |
| WESTINGHOUSE ELECTRIC CORP | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sykesville, Maryland, US | 8 | 1992–2009 |
| Glen Burnie, Maryland, US | 1 | 1985 |