Growing community of inventors

Houston, TX, United States of America

David S Chang

Average Co-Inventor Count = 1.57

ph-index = 6

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 = 439

David S ChangRobert J Schwartz (1 patent)David S ChangDavid Arthur Lanner (1 patent)David S ChangYen-Ping Chin Hsieh (1 patent)David S ChangAaron S Rhee (1 patent)David S ChangRonald K Crossland (1 patent)David S ChangCatherine A Lewis (1 patent)David S ChangWilliam E Boyles (1 patent)David S ChangPravin M Shah (1 patent)David S ChangDavid Y Wang (1 patent)David S ChangJorge O Buhler-Vidal (1 patent)David S ChangNarasimhaswamy Belaguli (1 patent)David S ChangJames J Carrazzone (1 patent)David S ChangJoe Marx (1 patent)David S ChangPhilip G Burger (1 patent)David S ChangDavid S Chang (10 patents)Robert J SchwartzRobert J Schwartz (25 patents)David Arthur LannerDavid Arthur Lanner (14 patents)Yen-Ping Chin HsiehYen-Ping Chin Hsieh (10 patents)Aaron S RheeAaron S Rhee (6 patents)Ronald K CrosslandRonald K Crossland (4 patents)Catherine A LewisCatherine A Lewis (3 patents)William E BoylesWilliam E Boyles (3 patents)Pravin M ShahPravin M Shah (2 patents)David Y WangDavid Y Wang (2 patents)Jorge O Buhler-VidalJorge O Buhler-Vidal (2 patents)Narasimhaswamy BelaguliNarasimhaswamy Belaguli (1 patent)James J CarrazzoneJames J Carrazzone (1 patent)Joe MarxJoe Marx (1 patent)Philip G BurgerPhilip G Burger (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (4 from 832,912 patents)

2. Shell Oil Comapny (1 from 7,646 patents)

3. Baylor College of Medicine (1 from 601 patents)

4. Exxon Production Research Company (1 from 601 patents)

5. The Friedkin Corporation (1 from 2 patents)


10 patents:

1. 9456673 - Fluid sealable protective case for portable electronic devices

2. 9271561 - Apparatus for improving the interchangeability of portable electronic devices amongst various supports and related methods

3. 9209850 - Protective case for controlling sound waves

4. D706254 - Protective case kickstand

5. D681624 - Protective cover

6. 7811820 - Smooth muscle cell differentiation with CRP, SRF and GATA factors

7. 6033707 - Fried snack

8. 5602535 - Vehicle security system based on two step communication range between

9. 5583825 - Method for deriving reservoir lithology and fluid content from pre-stack

10. 5340509 - Process for pelletizing ultra high melt flow crystalline polymers and

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1/11/2026
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