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Welwyn, United Kingdom

Andrew J Langley

USPTO Granted Patents = 7

Average Co-Inventor Count = 1.5

ph-index = 7

Forward Citations = 210(Granted Patents)

Location History:

Herts, GB (1996)
Welwyn, GB (1995 - 1997)

Company Filing History:

Noise Cancellation Technologies, Inc.

Years Active: 1995-1997

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5652799 - Noise reducing system (1997-07-29),

2. 5621656 - Adaptive resonator vibration control system (1997-04-15),

3. 5600106 - Actively sound reduced muffler having a venturi effect configuration (1997-02-04),

4. 5568557 - Active vibration control system for aircraft (1996-10-22),

5. 5550334 - Actively sound reduced muffler having a venturi effect configuration (1996-08-27),

6. 5481615 - Audio reproduction system (1996-01-02),

7. 5431008 - Active control of machine performance (1995-07-11),

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