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Essex Junction, VT, United States of America

Elizabeth Dallas

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 = 150

Elizabeth DallasRoger M Ball (2 patents)Elizabeth DallasElizabeth Dallas (2 patents)Roger M BallRoger M Ball (14 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,718 patents)

2. Red Corp. (1 from 5 patents)


2 patents:

1. 5940890 - Helmet including a strap securing device

2. 5915537 - Helmet

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as of
12/12/2025
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