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Memphis, TN, United States of America

Roy M Evans, Jr

Average Co-Inventor Count = 2.73

ph-index = 4

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 = 56

Roy M Evans, JrJoseph O Rubert (4 patents)Roy M Evans, JrHarold Richardson Crews (2 patents)Roy M Evans, JrHarold R Crews (2 patents)Roy M Evans, JrEdward R Moore (1 patent)Roy M Evans, JrRoy M Evans, Jr (5 patents)Joseph O RubertJoseph O Rubert (4 patents)Harold Richardson CrewsHarold Richardson Crews (6 patents)Harold R CrewsHarold R Crews (2 patents)Edward R MooreEdward R Moore (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (2 from 832,680 patents)

2. Preemptive Advertising Inc. (2 from 2 patents)

3. Preemptive Marketing, Inc. (1 from 1 patent)


5 patents:

1. 5639451 - Hair treatment compositions

2. 5560750 - Compositions and methods for altering the color of hair

3. 5415856 - Hair treatment compositions containing disaccharides

4. 5101841 - Compositions and methods for the treatment of hair

5. 4947878 - Compositions and methods for the treatment of hair

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as of
12/6/2025
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