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Worcester, MA, United States of America

Frank D Defalco

Average Co-Inventor Count = 4.00

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 = 367

Frank D DefalcoWilliam R Michalson (2 patents)Frank D DefalcoDouglas J Backman (2 patents)Frank D DefalcoGene V Roe (2 patents)Frank D DefalcoFrank D Defalco (2 patents)William R MichalsonWilliam R Michalson (9 patents)Douglas J BackmanDouglas J Backman (2 patents)Gene V RoeGene V Roe (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. American Navigations Systems, Inc. (1 from 1 patent)

2. American Navigation Systems, Inc. (1 from 1 patent)


2 patents:

1. 5987380 - Hand-held GPS-mapping device

2. 5902347 - Hand-held GPS-mapping device

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