Growing community of inventors

Dearborn, MI, United States of America

David Lawrence Hasfjord

Average Co-Inventor Count = 8.00

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 = 30

David Lawrence Hasfjord ↔ Richard Michael Avery, Jr (1 patent)David Lawrence Hasfjord ↔ Dennis Michael Letang (1 patent)David Lawrence Hasfjord ↔ Ian Daniel McKenzie (1 patent)David Lawrence Hasfjord ↔ Marleen F Thompson (1 patent)David Lawrence Hasfjord ↔ John Edward Longnecker (1 patent)David Lawrence Hasfjord ↔ Donald Michael McDonald (1 patent)David Lawrence Hasfjord ↔ James A Gray (1 patent)David Lawrence HasfjordDavid Lawrence Hasfjord (1 patent)Richard Michael Avery, JrRichard Michael Avery, Jr (26 patents)Dennis Michael LetangDennis Michael Letang (18 patents)Ian Daniel McKenzieIan Daniel McKenzie (13 patents)Marleen F ThompsonMarleen F Thompson (9 patents)John Edward LongneckerJohn Edward Longnecker (8 patents)Donald Michael McDonaldDonald Michael McDonald (2 patents)James A GrayJames A Gray (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Detroit Diesel Corporation (1 from 252 patents)


1 patent:

1. RE39845 - Maintenance alert system for heavy-duty trucks

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12/14/2025
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