Growing community of inventors

Raleigh, NC, United States of America

William N Engle

Average Co-Inventor Count = 4.00

ph-index = 3

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 52

William N EngleDavid W Cunningham (4 patents)William N EngleJohn M Harden (4 patents)William N EngleCharles W Reuben (4 patents)William N EngleWilliam N Engle (4 patents)David W CunninghamDavid W Cunningham (9 patents)John M HardenJohn M Harden (8 patents)Charles W ReubenCharles W Reuben (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Trialcard, Inc. (4 from 6 patents)


4 patents:

1. 8589184 - Method of delivering goods and services via media

2. 8407095 - Method of delivering a pharmaceutical product via a medium

3. 8055542 - Method of delivering goods and services via a variable value media

4. 7925531 - Method of delivering goods and services via media

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as of
1/2/2026
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