Growing community of inventors

Signal Hill, CA, United States of America

Helena Bartor

Average Co-Inventor Count = 3.00

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 = 27

Helena BartorEric C Ostendorff (1 patent)Helena BartorNathan C Proch (1 patent)Helena BartorHelena Bartor (1 patent)Eric C OstendorffEric C Ostendorff (30 patents)Nathan C ProchNathan C Proch (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mattel, Inc. (1 from 1,703 patents)


1 patent:

1. 6439948 - Two-wheeled amphibious toy vehicle

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1/14/2026
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