Forward Citations = 7

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3 inventors (with patents filed for the assignee):

William J Heilman (1 out of 43 patents)

I-Ching Chiu (1 out of 13 patents)

James C W Chien (1 out of 8 patents)

1 patent: Sort by Forward Citations

#2,196 in Houston, TX

#9,042 in Texas

#133,784 in US

Penzoil-quaker State Company

Forward Citations = 7

3 inventors:

William J Heilman (1 out of 43 patents)

I-Ching Chiu (1 out of 13 patents)

James C W Chien (1 out of 8 patents)

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