Growing community of inventors

Kalamazoo, MI, United States of America

Roy A Johnson

Average Co-Inventor Count = 1.43

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 = 289

Roy A JohnsonJohn C Sih (10 patents)Roy A JohnsonJohn E Pike (9 patents)Roy A JohnsonFrank H Lincoln, Jr (9 patents)Roy A JohnsonGordon L Bundy (8 patents)Roy A JohnsonGilbert A Youngdale (7 patents)Roy A JohnsonDouglas R Morton (7 patents)Roy A JohnsonDonald P Wallach, Deceased (7 patents)Roy A JohnsonChiu-Hong Lin (3 patents)Roy A JohnsonRobert C Kelly (2 patents)Roy A JohnsonHerman W Smith (2 patents)Roy A JohnsonHarvey I Skulnick (2 patents)Roy A JohnsonEldon George Nidy (2 patents)Roy A JohnsonMilton E Herr (2 patents)Roy A JohnsonJackson B Hester, Jr (1 patent)Roy A JohnsonKarl B Sharpless (1 patent)Roy A JohnsonBy Vera Wallach, Legal Representative (1 patent)Roy A JohnsonWallach, Legal Representative, By Vera M (1 patent)Roy A JohnsonVera M Wallach, Legal Representative (1 patent)Roy A JohnsonRoy A Johnson (75 patents)John C SihJohn C Sih (264 patents)John E PikeJohn E Pike (19 patents)Frank H Lincoln, JrFrank H Lincoln, Jr (16 patents)Gordon L BundyGordon L Bundy (140 patents)Gilbert A YoungdaleGilbert A Youngdale (26 patents)Douglas R MortonDouglas R Morton (21 patents)Donald P Wallach, DeceasedDonald P Wallach, Deceased (9 patents)Chiu-Hong LinChiu-Hong Lin (30 patents)Robert C KellyRobert C Kelly (78 patents)Herman W SmithHerman W Smith (77 patents)Harvey I SkulnickHarvey I Skulnick (24 patents)Eldon George NidyEldon George Nidy (9 patents)Milton E HerrMilton E Herr (2 patents)Jackson B Hester, JrJackson B Hester, Jr (64 patents)Karl B SharplessKarl B Sharpless (6 patents)By Vera Wallach, Legal RepresentativeBy Vera Wallach, Legal Representative (1 patent)Wallach, Legal Representative, By Vera MWallach, Legal Representative, By Vera M (1 patent)Vera M Wallach, Legal RepresentativeVera M Wallach, Legal Representative (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The Upjohn Co. (72 from 2,169 patents)

2. Other (2 from 831,952 patents)

3. Massachusetts Institute of Technology (1 from 8,298 patents)


75 patents:

1. 6911549 - Method of preparing a taxol derivative

2. 6001423 - Method of lead paint encapsulation

3. 5621123 - Cyclic hydrocarbons with an aminoalkyl sidechain

4. 5593980 - Arylmethylphosphonates and phosphonic acids useful as anti-inflammatory

5. 5556878 - .DELTA..sup.6,7 -taxols antineoplatic use and pharmaceutical

6. 5500417 - Arylmethylphosphonates and phosphonic acids useful as anti-inflammatory

7. 5373095 - Steroid compounds

8. 5360797 - Bisphosphonic acid derivatives useful as anti-arthritic agents

9. 5347029 - Dialkyl (dialkoxyphosphinyl)methyl phosphates as anti-inflammatory agents

10. 5334712 - Cyclic hydrocarbons with an aminoalkyl sidechain

11. 5298498 - Phosphonic acid derivatives useful as anti-inflammatory agents

12. 5196542 - Cyclic hydrocarbons with an aminoalkyl sidechain

13. 5187299 - Cyclic hydrocarbons with an aminoalkyl sidechain

14. 5145874 - Cyclic hydrocarbons with an aminoalkyl sidechain

15. 4917826 - Cyclic hydrocarbons with an aminoalkyl sidechain

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idiyas.com
as of
9/10/2025
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