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Shelby Township, MI, United States of America

Christopher John Lafrenz

Average Co-Inventor Count = 2.67

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 = 33

Christopher John LafrenzEdward Lesnau, Iv (4 patents)Christopher John LafrenzJohn Sas (2 patents)Christopher John LafrenzRon M Noteboom (2 patents)Christopher John LafrenzEdward Iv Lesnau (0 patent)Christopher John LafrenzChristopher John Lafrenz (4 patents)Edward Lesnau, IvEdward Lesnau, Iv (10 patents)John SasJohn Sas (5 patents)Ron M NoteboomRon M Noteboom (2 patents)Edward Iv LesnauEdward Iv Lesnau (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Federal-Mogul Corporation (3 from 386 patents)

2. Federal-Mogul Motorparts Corporation (1 from 92 patents)


4 patents:

1. 9651152 - Gasket assembly with improved locating and retention pin and method of construction thereof

2. 8950754 - Cylinder head gasket

3. 8833771 - Gasket assembly with improved locating and retention pin and method of construction thereof

4. 8616557 - Multilayer gasket with segmented integral stopper feature

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as of
1/10/2026
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