Growing community of inventors

Grand Rapids, MI, United States of America

Donald A Dekker

Average Co-Inventor Count = 1.38

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 = 44

Donald A DekkerJeffrey J Kalis (1 patent)Donald A DekkerLloyd D Herring (1 patent)Donald A DekkerJames D Collins (1 patent)Donald A DekkerRobert I Courts (1 patent)Donald A DekkerLawrence Zandstra (1 patent)Donald A DekkerMichael R Nulph (1 patent)Donald A DekkerDonald A Dekker (7 patents)Jeffrey J KalisJeffrey J Kalis (16 patents)Lloyd D HerringLloyd D Herring (6 patents)James D CollinsJames D Collins (3 patents)Robert I CourtsRobert I Courts (3 patents)Lawrence ZandstraLawrence Zandstra (2 patents)Michael R NulphMichael R Nulph (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rowe International Corporation (5 from 70 patents)

2. Attwood Corporation (2 from 92 patents)


7 patents:

1. 6279718 - Merchandising machine with bulk coin hopper

2. 5715923 - Currency acceptor with locking cash box

3. 5205481 - Locked cassette bill box

4. 5067701 - Multiple bill escrow mechanism

5. 4887808 - Compact bill acceptor

6. 4044624 - Boat steering wheel

7. 4038735 - Method of fabricating steering wheel

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as of
1/4/2026
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