Growing community of inventors

Gaithersburg, MD, United States of America

Donald R Durham

Average Co-Inventor Count = 2.78

ph-index = 9

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 = 250

Donald R DurhamJames George Miller (4 patents)Donald R DurhamAlan B Chmurny (3 patents)Donald R DurhamMichael J Wax (3 patents)Donald R DurhamRichard Franklin Wormsbecher (2 patents)Donald R DurhamWayne E Swann (2 patents)Donald R DurhamDonald Z Fortney (2 patents)Donald R DurhamEdmund J Stellwag (2 patents)Donald R DurhamLeo B Aller (2 patents)Donald R DurhamDouglas W Fodge (1 patent)Donald R DurhamJ Leslie Glick (1 patent)Donald R DurhamTimothy A Boyer (1 patent)Donald R DurhamCarol A Nolf (1 patent)Donald R DurhamClyde G McNamee (1 patent)Donald R DurhamRobert Haywood Bates, Deceased (1 patent)Donald R DurhamKang Yang (1 patent)Donald R DurhamDonald Zane Fortney (1 patent)Donald R DurhamDavid B Stewart (1 patent)Donald R DurhamDonald R Durham (11 patents)James George MillerJames George Miller (13 patents)Alan B ChmurnyAlan B Chmurny (9 patents)Michael J WaxMichael J Wax (7 patents)Richard Franklin WormsbecherRichard Franklin Wormsbecher (28 patents)Wayne E SwannWayne E Swann (5 patents)Donald Z FortneyDonald Z Fortney (3 patents)Edmund J StellwagEdmund J Stellwag (2 patents)Leo B AllerLeo B Aller (2 patents)Douglas W FodgeDouglas W Fodge (9 patents)J Leslie GlickJ Leslie Glick (5 patents)Timothy A BoyerTimothy A Boyer (4 patents)Carol A NolfCarol A Nolf (2 patents)Clyde G McNameeClyde G McNamee (1 patent)Robert Haywood Bates, DeceasedRobert Haywood Bates, Deceased (1 patent)Kang YangKang Yang (1 patent)Donald Zane FortneyDonald Zane Fortney (1 patent)David B StewartDavid B Stewart (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. W. R. Grace Co.-Conn. (7 from 1,391 patents)

2. Genex Corporation (3 from 33 patents)

3. W. R. Grace Co. (1 from 853 patents)

4. Conn. / Teva Pharmaceuticals USA, Inc. (1 from 1 patent)


11 patents:

1. 6107067 - Porous, non-macroporous, inorganic oxide carrier body for immobilizing

2. 6017531 - Hydrophilic composition containing protease produced by Vibrio

3. 5569634 - Process upset-resistant inorganic supports for bioremediation

4. 5505943 - Compositions containing protease produced by vibrio and method of use in

5. 5403809 - Composite inorganic supports containing carbon for bioremediation

6. 5403799 - Process upset-resistant inorganic supports for bioremediation

7. 5145681 - Compositions containing protease produced by vibrio and method of use in

8. 4865983 - Cleaning compositions containing protease produced by vibrio and method

9. 4771003 - Heat stable alkaline proteases produced by a bacillus

10. 4764470 - Alkaline protease produced by a bacillus

11. 4610800 - Method for unclogging drainage pipes

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1/8/2026
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