Growing community of inventors

Cupertino, CA, United States of America

Yu-Ling Cheng

Average Co-Inventor Count = 4.00

ph-index = 7

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 = 581

Yu-Ling ChengHarold F Sanders (5 patents)Yu-Ling ChengRobert M Gale (4 patents)Yu-Ling ChengEdna Sugihara (4 patents)Yu-Ling ChengDavid J Enscore (3 patents)Yu-Ling ChengShari B Libicki (3 patents)Yu-Ling ChengDiane E Nedberge (2 patents)Yu-Ling ChengMelinda K Nelson (1 patent)Yu-Ling ChengYu-Ling Cheng (7 patents)Harold F SandersHarold F Sanders (7 patents)Robert M GaleRobert M Gale (73 patents)Edna SugiharaEdna Sugihara (4 patents)David J EnscoreDavid J Enscore (24 patents)Shari B LibickiShari B Libicki (3 patents)Diane E NedbergeDiane E Nedberge (17 patents)Melinda K NelsonMelinda K Nelson (12 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Alza Corporation (7 from 1,062 patents)


7 patents:

1. 4940586 - Skin permeation enhancer compositions using sucrose esters

2. 4900555 - Skin permeation enhancer compositions using sucrose esters

3. 4865848 - Skin permeation enhancer compositions using sucrose esters

4. 4820720 - Transdermal drug composition with dual permeation enhancers

5. 4788062 - Transdermal administration of progesterone, estradiol esters, and

6. 4764379 - Transdermal drug delivery device with dual permeation enhancers

7. 4746515 - Skin permeation enhancer compositions using glycerol monolaurate

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as of
12/31/2025
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