David A. Willems

Person

Salem, VA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Tunable microwave filter apparatus having a notch resonator
- Patent number 5,406,234
- Issue date Apr 11, 1995
- ITT Corporation
- David A. Willems
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electronically tunable gain equalizer
- Patent number 5,363,069
- Issue date Nov 8, 1994
- ITT Corporation
- Virender K. Sadhir
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Broadband tight coupled microstrip line structures
- Patent number 5,313,175
- Issue date May 17, 1994
- ITT Corporation
- Inder J. Bahl
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
FET crossbar switch device particularly useful for microwave applic...
- Patent number 5,309,006
- Issue date May 3, 1994
- ITT Corporation
- David A. Willems
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Monolithic compatible, absorptive, amplitude shaping network
- Patent number 5,283,539
- Issue date Feb 1, 1994
- ITT Corporation
- Virender K. Sadhir
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Microstrip twisted broadside coupler apparatus
- Patent number 5,281,929
- Issue date Jan 25, 1994
- ITT Corporation
- David A. Willems
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Broadband microstrip filter apparatus having inteleaved resonator s...
- Patent number 5,278,529
- Issue date Jan 11, 1994
- ITT Corporation
- David A. Willems
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Microstrip transformer apparatus
- Patent number 5,262,740
- Issue date Nov 16, 1993
- ITT Corporation
- David A. Willems
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Switched transmission line phase shifter apparatus employing multip...
- Patent number 5,180,998
- Issue date Jan 19, 1993
- ITT Corporation
- David A. Willems
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High efficiency harmonic injection power amplifier
- Patent number 5,172,072
- Issue date Dec 15, 1992
- ITT Corporation
- David A. Willems
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Active-type broadband power divider
- Patent number 5,168,242
- Issue date Dec 1, 1992
- ITT Corporation
- David A. Willems
- H03 - BASIC ELECTRONIC CIRCUITRY

David A. Willems

Person

Patents Grantslast 30 patents

Tunable microwave filter apparatus having a notch resonator

Electronically tunable gain equalizer

Broadband tight coupled microstrip line structures

FET crossbar switch device particularly useful for microwave applic...

Monolithic compatible, absorptive, amplitude shaping network

Microstrip twisted broadside coupler apparatus

Broadband microstrip filter apparatus having inteleaved resonator s...

Microstrip transformer apparatus

Switched transmission line phase shifter apparatus employing multip...

High efficiency harmonic injection power amplifier

Active-type broadband power divider