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Orinda, CA, United States of America

Ellwood S Douglas

USPTO Granted Patents = 9

Average Co-Inventor Count = 2.4

ph-index = 6

Forward Citations = 138(Granted Patents)

Company Filing History:

Package Machinery Co. Inc.

Eagle Machinery Company

Years Active: 1976-1993

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5270495 - Combination weighing machine with feed control (1993-12-14),

2. 4813503 - Method and apparatus for preparing a blended product charge (1989-03-21),

3. 4550792 - Combination weighing system (1985-11-05),

4. 4535856 - Combination weighing machine having short search (1985-08-20),

5. 4534428 - Vibratory feeder control for a weighing system (1985-08-13),

6. 4533007 - Combination weighing system with span adjustment device (1985-08-06),

7. 4529050 - Combination weighing machine with adaptive signal correction (1985-07-16),

8. 4466500 - Combination weighing system (1984-08-21),

9. 4000444 - Electric circuit breaker with ground fault protection (1976-12-28),

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