Growing community of inventors

Ottawa, OH, United States of America

Doanld L Siefker

Average Co-Inventor Count = 5.00

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 = 0

Doanld L Siefker ↔ Charles H Rehkopf (1 patent)Doanld L Siefker ↔ Franklin G Reigel (1 patent)Doanld L Siefker ↔ Samuel S Chung (1 patent)Doanld L Siefker ↔ James R Stowe (1 patent)Doanld L SiefkerDoanld L Siefker (1 patent)Charles H RehkopfCharles H Rehkopf (12 patents)Franklin G ReigelFranklin G Reigel (3 patents)Samuel S ChungSamuel S Chung (2 patents)James R StoweJames R Stowe (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. North American Philips Consumer Electronics Corp. (1 from 93 patents)


1 patent:

1. 4832646 - Aging process for cathode ray tubes

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12/17/2025
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