Growing community of inventors

Brookline, MA, United States of America

Fred L Hacker

Average Co-Inventor Count = 3.00

ph-index = 3

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 = 83

Fred L Hacker ↔ Hanne M Kooy (3 patents)Fred L Hacker ↔ Marc R Bellerive (3 patents)Fred L HackerFred L Hacker (3 patents)Hanne M KooyHanne M Kooy (6 patents)Marc R BelleriveMarc R Bellerive (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Radionics, Inc. (2 from 18 patents)

2. Sherwood Services Ag (1 from 268 patents)


3 patents:

1. 6278766 - Jaw and circular collimator

2. 6041101 - Jaw and circular collimator

3. 6005919 - Jaw and circular collimator

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as of
1/2/2026
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