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Salem, NH, United States of America

William M Prendergast

Average Co-Inventor Count = 3.00

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 = 79

William M PrendergastJames T Ligon, Sr (2 patents)William M PrendergastStephen P Porter (2 patents)William M PrendergastAnthony R Haba (2 patents)William M PrendergastDaniel J Margolien (1 patent)William M PrendergastWilliam M Prendergast (3 patents)James T Ligon, SrJames T Ligon, Sr (17 patents)Stephen P PorterStephen P Porter (9 patents)Anthony R HabaAnthony R Haba (2 patents)Daniel J MargolienDaniel J Margolien (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ex-cell-o Gmbh (1 from 299 patents)

2. Textron Automotive Company Inc. (1 from 79 patents)

3. Schukra Usa, Inc. (1 from 1 patent)


3 patents:

1. 6227618 - Cable attachment for a lumbar support

2. 6045185 - Cable attachment for a lumbar support

3. 4686730 - Semi-automatic armature assembly slot cleaner

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as of
12/20/2025
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