Growing community of inventors

Cambridge, MA, United States of America

Richard L Duffy

Average Co-Inventor Count = 2.50

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 = 158

Richard L DuffyMarc E Parham (5 patents)Richard L DuffyDonald T Nicholson (3 patents)Richard L DuffyRichard L Duffy (5 patents)Marc E ParhamMarc E Parham (14 patents)Donald T NicholsonDonald T Nicholson (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. W. R. Grace Co.-Conn. (5 from 1,391 patents)


5 patents:

1. 5496637 - High efficiency removal of low density lipoprotein-cholesterol from

2. 5418061 - Microporous polysulfone supports suitable for removal of low density

3. 5258149 - Process of making a membrane for high efficiency removal of low density

4. 5236644 - Process of making membrane for removal of low density

5. 5187010 - Membrane having high affinity for low density lipoprotein-cholesterol

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