Patrick J. Knowles

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Gambrills, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Hybrid multi-pole gain zero filter element
- Patent number 6,617,942
- Issue date Sep 9, 2003
- Northrop Grumman Corporation
- Lynette M. Jones
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Parasitically driven dipole array
- Patent number 6,518,934
- Issue date Feb 11, 2003
- Northrop Grumman Corporation
- Patrick J. Knowles
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
90.degree. phase shifter apparatus and method using a directly coup...
- Patent number 5,877,659
- Issue date Mar 2, 1999
- Northrop Grumman Corporation
- Patrick Knowles
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tilted element antenna having increased effective aperture and meth...
- Patent number 5,874,927
- Issue date Feb 23, 1999
- Patrick J. Knowles
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Helical antenna having a parasitic element and method of using same
- Patent number 5,754,146
- Issue date May 19, 1998
- Westinghouse Electric Corporation
- Patrick J. Knowles
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Microwave buffer
- Patent number 5,291,155
- Issue date Mar 1, 1994
- Westinghouse Electric Corp.
- Timothy G. Waterman
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ominidirectional ground plane effect radiator
- Patent number 5,258,769
- Issue date Nov 2, 1993
- Westinghouse Electric Corp.
- Patrick J. Knowles
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SPHERICAL DIELECTRIC STRUCTURES FOR STORING ELECTROMAGNETIC ENERGY
- Publication number 20240120628
- Publication date Apr 11, 2024
- Timothy G. WATERMAN
- H01 - BASIC ELECTRIC ELEMENTS