Growing community of inventors

Oshawa, Canada

Robert G Martindale

Average Co-Inventor Count = 2.00

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 = 48

Robert G MartindaleHugo Giorgio (2 patents)Robert G MartindaleRobert G Martindale (2 patents)Hugo GiorgioHugo Giorgio (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Safeco Mfg. Limited (1 from 4 patents)

2. Safeco Manufacturing Limited (1 from 1 patent)


2 patents:

1. 4932076 - Fire fighter helmets

2. 4829599 - Fire fighter helmets

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idiyas.com
as of
12/12/2025
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