Richard Modafferi

Person

Vestal, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Crossover for multi-driver loudspeakers
- Patent number 10,701,487
- Issue date Jun 30, 2020
- Richard Modafferi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Quadrature modulation apparatus for AM stereo transmitters
- Patent number 9,485,043
- Issue date Nov 1, 2016
- Richard Modafferi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Infinite slope loudspeaker crossover filter
- Patent number 7,085,389
- Issue date Aug 1, 2006
- Modafferi Acoustical Systems
- Richard T. Modafferi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio frequency power amplifier with improved circuit topology
- Patent number 4,918,394
- Issue date Apr 17, 1990
- Modafferi Acoustical Systems, Ltd.
- Richard Modafferi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multidriver loudspeaker apparatus with improved crossover filter ci...
- Patent number 4,771,466
- Issue date Sep 13, 1988
- Modafferi Acoustical Systems, Ltd.
- Richard Modafferi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase shift low frequency loudspeaker system
- Patent number 4,403,112
- Issue date Sep 6, 1983
- Modafferi Acoustical Systems, Ltd.
- Richard Modafferi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Low range loudspeaker system
- Patent number 3,984,635
- Issue date Oct 5, 1976
- Electro Acoustical Labs, Inc.
- Mioljub R. Nestorovic
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Richard Modafferi

Person

Patents Grantslast 30 patents

Crossover for multi-driver loudspeakers

Quadrature modulation apparatus for AM stereo transmitters

Infinite slope loudspeaker crossover filter

Audio frequency power amplifier with improved circuit topology

Multidriver loudspeaker apparatus with improved crossover filter ci...

Phase shift low frequency loudspeaker system

Low range loudspeaker system