Growing community of inventors

Winnetka, IL, United States of America

Barbara Ellen Plain

Average Co-Inventor Count = 3.23

ph-index = 5

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 = 76

Barbara Ellen PlainTirza Ernst (2 patents)Barbara Ellen PlainMichael I Blaustein (2 patents)Barbara Ellen PlainElizabeth M Ganrude (2 patents)Barbara Ellen PlainLonnie Clyde Pogue (1 patent)Barbara Ellen PlainGayle E Gordon (1 patent)Barbara Ellen PlainRichard Woldenberg (1 patent)Barbara Ellen PlainYau Chung Siu (1 patent)Barbara Ellen PlainWai Hing Kim (1 patent)Barbara Ellen PlainVictor Kwok-ho Ng (1 patent)Barbara Ellen PlainSamuel Nguy (1 patent)Barbara Ellen PlainBrian Macowski (1 patent)Barbara Ellen PlainPo Man Yuen (1 patent)Barbara Ellen PlainJane Woldenberg (1 patent)Barbara Ellen PlainBarbara Ellen Plain (7 patents)Tirza ErnstTirza Ernst (4 patents)Michael I BlausteinMichael I Blaustein (2 patents)Elizabeth M GanrudeElizabeth M Ganrude (2 patents)Lonnie Clyde PogueLonnie Clyde Pogue (9 patents)Gayle E GordonGayle E Gordon (5 patents)Richard WoldenbergRichard Woldenberg (2 patents)Yau Chung SiuYau Chung Siu (2 patents)Wai Hing KimWai Hing Kim (1 patent)Victor Kwok-ho NgVictor Kwok-ho Ng (1 patent)Samuel NguySamuel Nguy (1 patent)Brian MacowskiBrian Macowski (1 patent)Po Man YuenPo Man Yuen (1 patent)Jane WoldenbergJane Woldenberg (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Learning Resources, Inc. (6 from 23 patents)


7 patents:

1. 11648485 - Toy robot

2. D890861 - Toy robot

3. 7351062 - Educational devices, systems and methods using optical character recognition

4. 6532314 - Talking toy scanner

5. 6179682 - Teaching toy telephone

6. D420405 - Teaching toy telephone

7. D377949 - Digital/analog teaching clock

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as of
12/8/2025
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