Growing community of inventors

Muskegon, MI, United States of America

Robert M Medema

Average Co-Inventor Count = 2.64

ph-index = 7

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 = 114

Robert M MedemaCharles H Osborn (11 patents)Robert M MedemaAndrew K Ruiter (6 patents)Robert M MedemaRobert A DeJonge (1 patent)Robert M MedemaDale A Beattie (1 patent)Robert M MedemaRichard L Meisch (1 patent)Robert M MedemaDana M Lee (1 patent)Robert M MedemaRobert M Medema (11 patents)Charles H OsbornCharles H Osborn (31 patents)Andrew K RuiterAndrew K Ruiter (17 patents)Robert A DeJongeRobert A DeJonge (11 patents)Dale A BeattieDale A Beattie (4 patents)Richard L MeischRichard L Meisch (3 patents)Dana M LeeDana M Lee (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Grand Haven Stamped Products, Div. of Jsj Corporation (6 from 13 patents)

2. Grand Haven Stamped Products (2 from 17 patents)

3. Grand Haven Stamped Products, Division of Jsj Corporation (2 from 16 patents)

4. Grand Haven Stamped Products, a Division of Jsj Corporation (1 from 3 patents)


11 patents:

1. 5785626 - Shifter with cable adjustable mechanism

2. 5775166 - Vehicle shifter

3. 5759132 - Vehicle park/lock mechanism with control module having a locking

4. 5718312 - Vehicle park/lock mechanism with control module having a locking

5. 5677658 - Electrically operated control module for a locking mechanism

6. 5651290 - Manual shifter with reverse lock mechanism

7. 5649452 - Shifter with means for actuating cable to key mechanism

8. 5588934 - Shifter with means for actuating cable to key mechanism

9. 5494141 - Vehicle park/lock mechanism

10. 5490434 - Vehicle transfer case shifter system

11. 5465818 - Park lock mechanism with means to prevent lockout member from

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as of
12/9/2025
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