Growing community of inventors

Columbus, OH, United States of America

Stephen Simula

Average Co-Inventor Count = 5.14

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 = 242

Stephen SimulaToshiaki Hayashi (6 patents)Stephen SimulaTaro Ueda (6 patents)Stephen SimulaHenry Shilling (6 patents)Stephen SimulaFloris H J F Keizer (5 patents)Stephen SimulaStephanie Horwitz (1 patent)Stephen SimulaFloris Hjf Keizer (1 patent)Stephen SimulaStephen Simula (6 patents)Toshiaki HayashiToshiaki Hayashi (10 patents)Taro UedaTaro Ueda (6 patents)Henry ShillingHenry Shilling (6 patents)Floris H J F KeizerFloris H J F Keizer (5 patents)Stephanie HorwitzStephanie Horwitz (1 patent)Floris Hjf KeizerFloris Hjf Keizer (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nissan Motor Company Limited (3 from 13,398 patents)

2. Coato Workshop Inc. (2 from 6 patents)

3. Other (1 from 832,718 patents)


6 patents:

1. D486499 - Selection screen display for motor vehicle

2. D486155 - Screen display for motor vehicle

3. 6625562 - Multiple rpm indicating tachometer for motor vehicles

4. D475940 - Display for motor vehicle

5. D465428 - Tachometer display

6. D465167 - Multiple RPM indicating tachometer display

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as of
12/13/2025
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