John F. Visher

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Maibu, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Acoustic absorber
- Patent number 11,024,278
- Issue date Jun 1, 2021
- HRL Laboratories, LLC
- Adour V. Kabakian
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Method and system for determining an optimized artificial impedance...
- Patent number 7,929,147
- Issue date Apr 19, 2011
- HRL Laboratories, LLC
- Bryan H. Fong
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for designing artificial surface impedance structures charac...
- Patent number 7,911,407
- Issue date Mar 22, 2011
- HRL Laboratories, LLC
- Bryan Ho Lim Fong
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Artificial impedance structure
- Patent number 7,830,310
- Issue date Nov 9, 2010
- HRL Laboratories, LLC
- Daniel F. Sievenpiper
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Artificial impedance structure
- Patent number 7,218,281
- Issue date May 15, 2007
- HRL Laboratories, LLC
- Daniel F. Sievenpiper
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for modeling three-dimensional electromagnetic...
- Patent number 6,847,925
- Issue date Jan 25, 2005
- HRL Laboratories, LLC
- John Jacob Ottusch
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Artificial impedance structure
- Publication number 20070001909
- Publication date Jan 4, 2007
- Daniel F. Sievenpiper
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method and apparatus for modeling three-dimensional electromagnetic...
- Publication number 20030158715
- Publication date Aug 21, 2003
- John Jacob Ottusch
- G06 - COMPUTING CALCULATING COUNTING