Growing community of inventors

Chicago, IL, United States of America

Howard S Okubo

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 = 25

Howard S Okubo ↔ Clarence E Albertson (2 patents)Howard S Okubo ↔ Roger K Nibert (2 patents)Howard S OkuboHoward S Okubo (2 patents)Clarence E AlbertsonClarence E Albertson (14 patents)Roger K NibertRoger K Nibert (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Borgwarner Inc. (2 from 2,680 patents)


2 patents:

1. 4477605 - Asbestos-free friction materials

2. 4446203 - Asbestos-free friction materials

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12/21/2025
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