Growing community of inventors

Hong Kong, China

Yuen Po Man

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 = 20

Yuen Po ManRichard M Woldenberg (1 patent)Yuen Po ManNancy Balter (1 patent)Yuen Po ManYuen Po Man (2 patents)Richard M WoldenbergRichard M Woldenberg (4 patents)Nancy BalterNancy Balter (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Learning Resources, Inc. (2 from 23 patents)


2 patents:

1. 8611192 - Elapsed time clock

2. 5851118 - Digital and analog teaching clock

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1/4/2026
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