Growing community of inventors

Highland Park, IL, United States of America

Tirza Ernst

Average Co-Inventor Count = 2.53

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 = 38

Tirza Ernst ↔ Barbara Ellen Plain (2 patents)Tirza Ernst ↔ Gayle E Gordon (1 patent)Tirza Ernst ↔ Eric Toriumi (1 patent)Tirza Ernst ↔ Richard Woldenberg (1 patent)Tirza Ernst ↔ Samuel Nguy (1 patent)Tirza Ernst ↔ Jane Woldenberg (1 patent)Tirza ErnstTirza Ernst (4 patents)Barbara Ellen PlainBarbara Ellen Plain (7 patents)Gayle E GordonGayle E Gordon (5 patents)Eric ToriumiEric Toriumi (3 patents)Richard WoldenbergRichard Woldenberg (2 patents)Samuel NguySamuel Nguy (1 patent)Jane WoldenbergJane Woldenberg (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Learning Resources, Inc. (3 from 23 patents)


4 patents:

1. D531669 - Educational device

2. 6532314 - Talking toy scanner

3. D400813 - Teaching scale

4. D377949 - Digital/analog teaching clock

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idiyas.com
as of
12/29/2025
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