Growing community of inventors

Marblehead, MA, United States of America

David H Caldwell

Average Co-Inventor Count = 2.18

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 = 67

David H CaldwellRobert M Hurley (3 patents)David H CaldwellDan E Picini (2 patents)David H CaldwellDavid H Caldwell (4 patents)Robert M HurleyRobert M Hurley (3 patents)Dan E PiciniDan E Picini (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Gte Products Corporation (4 from 1,770 patents)


4 patents:

1. D300906 - Multiple lamp bulb package

2. D283309 - Dual lamp bulb package

3. D279655 - Lamp bulb packaging container

4. 4441650 - Lamp package

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as of
12/20/2025
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