Forward Citations = 2

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2 inventors (with patents filed for the assignee):

Ralph E Pfister (1 out of 2 patents)

Donald L Griffin (1 out of 1 patent)

1 patent: Sort by Forward Citations

#112 in Malvern, PA

#4,874 in Pennsylvania

#133,784 in US

Barriergen, Inc.

Forward Citations = 2

2 inventors:

Ralph E Pfister (1 out of 2 patents)

Donald L Griffin (1 out of 1 patent)

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