Growing community of inventors

Conroe, TX, United States of America

John P O'Hagan

Average Co-Inventor Count = 1.50

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 = 35

John P O'HaganTom T Hashimoto (1 patent)John P O'HaganWilliam S O'Hagan, Sr (1 patent)John P O'HaganJohn P O'Hagan (2 patents)Tom T HashimotoTom T Hashimoto (4 patents)William S O'Hagan, SrWilliam S O'Hagan, Sr (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (2 from 832,812 patents)


2 patents:

1. 6321518 - Land clearing machine attachment

2. 5513485 - Full-swinging cutter for reduction head

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12/19/2025
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