Growing community of inventors

Fort Worth, TX, United States of America

David E Rankin

Average Co-Inventor Count = 6.00

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 = 41

David E RankinBobbie Cox (3 patents)David E RankinDavid S Wick (3 patents)David E RankinDale R Westerfield (3 patents)David E RankinOscar P Roper (3 patents)David E RankinCharles W Langley (3 patents)David E RankinDavid E Rankin (3 patents)Bobbie CoxBobbie Cox (5 patents)David S WickDavid S Wick (3 patents)Dale R WesterfieldDale R Westerfield (3 patents)Oscar P RoperOscar P Roper (3 patents)Charles W LangleyCharles W Langley (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (3 from 832,891 patents)


3 patents:

1. 6644542 - Enhanced-security delivery receptacles

2. 6644543 - Enhanced-security delivery receptacles with brick-in feature

3. 6588656 - Enhanced-security delivery receptacles for parcels

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as of
1/1/2026
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