Growing community of inventors

Chadds Ford, PA, United States of America

Donald Douglas May

Average Co-Inventor Count = 1.29

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 = 60

Donald Douglas MayRobert Craig Buck (3 patents)Donald Douglas MayEngelbert Pechhold (2 patents)Donald Douglas MayBrian C Auman (1 patent)Donald Douglas MayChristopher P Junk (1 patent)Donald Douglas MayZhang Honggui (1 patent)Donald Douglas MayBernd Zimmermann (1 patent)Donald Douglas MayDonald Douglas May (17 patents)Robert Craig BuckRobert Craig Buck (5 patents)Engelbert PechholdEngelbert Pechhold (30 patents)Brian C AumanBrian C Auman (49 patents)Christopher P JunkChristopher P Junk (41 patents)Zhang HongguiZhang Honggui (1 patent)Bernd ZimmermannBernd Zimmermann (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. E.i. Dupont De Nemours and Company (16 from 16,338 patents)

2. Dupont Electronics, Inc. (1 from 70 patents)


17 patents:

1. 10822746 - Wallpaper

2. 9637657 - Liquid fluoropolymer coating composition and fluoropolymer coated film

3. 7947770 - Flame retardant polycarbonate compositions

4. 7888408 - Treated inorganic metal containing powders and polymer films containing them

5. 7723414 - Antistatic system for polymers

6. 7338995 - Titanium dioxide—containing polymers and films with reduced melt fracture

7. 5847134 - Fluorocarbon-containing isocyanate derivatives and soil-resist agents

8. 5827919 - Fluorourethane additives for water-dispersed coating compositions

9. 5707949 - Prevention of dye-bleeding and transfer during laundering

10. 5681902 - Process for the perfluoroalkylation of substances having terminal

11. 5460891 - Substrates treated with bis(hydroxyphenyl)sulfone stain-resists

12. 5447755 - Substrates treated with bis(hydroxyphenyl) sulfone stain-resists

13. 5427859 - Fluoroorganic soil-resist agents

14. 5408010 - Fluoroorganic soli-resist agents

15. 5276194 - Polyfluoroalkylation of aromatic compounds

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as of
12/21/2025
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