Growing community of inventors

Menlo Park, CA, United States of America

David De Graaff

Average Co-Inventor Count = 4.00

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 = 19

David De GraaffPaul B Robbins (1 patent)David De GraaffDavid J Wright (1 patent)David De GraaffKevin Heyes (1 patent)David De GraaffDavid De Graaff (1 patent)Paul B RobbinsPaul B Robbins (8 patents)David J WrightDavid J Wright (6 patents)Kevin HeyesKevin Heyes (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Robbins Scientific Corporation (1 from 10 patents)


1 patent:

1. 6146594 - Syringe array with adjustable needle spacing

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