Growing community of inventors

Pasadena, CA, United States of America

Randall R Spangler

Average Co-Inventor Count = 2.00

ph-index = 2

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 = 73

Randall R SpanglerRodney M Goodman (2 patents)Randall R SpanglerRandall R Spangler (2 patents)Rodney M GoodmanRodney M Goodman (14 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. California Institute of Technology (2 from 4,556 patents)


2 patents:

1. 5883326 - Music composition

2. 5736666 - Music composition

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as of
1/23/2026
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