Growing community of inventors

Houston, TX, United States of America

Michael W Speck

Average Co-Inventor Count = 1.00

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 = 66

Michael W SpeckMichael W Speck (4 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Hillerich Bradsby Company (3 from 87 patents)

2. Other (1 from 832,912 patents)


4 patents:

1. 6732863 - Baseball/softball equipment bag

2. 6595358 - Baseball/softball equipment bag

3. 6009995 - Baseball/softball equipment bag

4. 5588529 - Baseball/softball equipment bag

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as of
1/10/2026
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