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Creve Coeur, IL, United States of America

Elmer B Phelps

USPTO Granted Patents = 3

Average Co-Inventor Count = 2.4

ph-index = 2

Forward Citations = 24(Granted Patents)

Location History:

Creve Coeur, IL (US) (1977 - 1989)
Creve Coeru, IL (US) (1989)

Company Filing History:

Caterpillar Inc.

Caterpillar Tractor Co.

Years Active: 1977-1989

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3 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4867253 - Dampener for impacting mechanism (1989-09-19),

2. 4852662 - Impacting mechanism (1989-08-01),

3. 4021049 - Adjustable lip type seal for a crankshaft (1977-05-03),

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