Growing community of inventors

Columbus, IN, United States of America

Ivar L Johnson

Average Co-Inventor Count = 9.00

ph-index = 1

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 = 12

Ivar L Johnson ↔ Lester L Peters (1 patent)Ivar L Johnson ↔ George L Muntean (1 patent)Ivar L Johnson ↔ Yul J Tarr (1 patent)Ivar L Johnson ↔ Laszlo D Tikk (1 patent)Ivar L Johnson ↔ Harry L Wilson (1 patent)Ivar L Johnson ↔ Bai Mao Yen (1 patent)Ivar L Johnson ↔ Mustahsen Gull (1 patent)Ivar L Johnson ↔ Daniel G Burns (1 patent)Ivar L JohnsonIvar L Johnson (1 patent)Lester L PetersLester L Peters (75 patents)George L MunteanGeorge L Muntean (44 patents)Yul J TarrYul J Tarr (25 patents)Laszlo D TikkLaszlo D Tikk (21 patents)Harry L WilsonHarry L Wilson (12 patents)Bai Mao YenBai Mao Yen (3 patents)Mustahsen GullMustahsen Gull (3 patents)Daniel G BurnsDaniel G Burns (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cummins Engine Company, Inc. (1 from 649 patents)


1 patent:

1. 6116273 - Fuel metering check valve arrangement for a time-pressure controlled

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12/26/2025
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