Growing community of inventors

St. Louis, MO, United States of America

John N Rapko

Average Co-Inventor Count = 1.58

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 = 12

John N RapkoMichael J Dolan (2 patents)John N RapkoWilliam W Morgenthaler (2 patents)John N RapkoMarvin M Crutchfield (1 patent)John N RapkoJohn N Rapko (5 patents)Michael J DolanMichael J Dolan (4 patents)William W MorgenthalerWilliam W Morgenthaler (2 patents)Marvin M CrutchfieldMarvin M Crutchfield (32 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Monsanto Company (5 from 3,288 patents)


5 patents:

1. 4687593 - Alkylaryl sulfonate compositions

2. 4645623 - Alkylaryl sulfonate compositions

3. 4150069 - Phosphate-carboxylate compounds

4. 4147654 - N-Acetyl diglycolimide, and its use as a bleach activator

5. 4118568 - N-acetyl diglycolimide

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as of
12/15/2025
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