Growing community of inventors

Ephrata, PA, United States of America

Daniel M Holdridge

Average Co-Inventor Count = 1.00

ph-index = 1

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 = 4

Daniel M HoldridgeDaniel M Holdridge (7 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Awi Licensing LLC (6 from 179 patents)

2. Awi Licensing Company (1 from 156 patents)

3. Armstrong World Industries, Inc. (448 patents)


7 patents:

1. 12428840 - Ceiling system

2. 11753822 - Ceiling system

3. 11339571 - Ceiling system

4. 10914069 - Ceiling system

5. 10626605 - Ceiling system

6. 10309104 - Ceiling system

7. 9194123 - Ceiling system

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as of
12/31/2025
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