Richard Madden

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Groton, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Sound attenuation system and related method
- Patent number 5,952,621
- Issue date Sep 14, 1999
- GTE Internetworking Incorporated
- Alan R. D. Curtis
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Quiet touch fastener material
- Patent number 4,776,068
- Issue date Oct 11, 1988
- Velcro Industries B.V.
- Martin E. Smirlock
- A44 - HABERDASHERY JEWELLERY