Inventor · disambiguated record
Douglas W. Chapman
Also filed as: CHAPMAN DOUGLAS W
3 granted patents·27 citations·filing 1977–1983
69Inventor score
Files withMALLINCKRODT INC3
Top patents by PatentIndex Score
3 records- 0161US4571437AProcess for preparing p-aminophenol and alkyl substituted p-aminophenolMALLINCKRODT INC·Filed 1983·Granted Feb 18, 1986·14 cites·18 claims
- 0259US4112238AMethod for the preparation of pure 2-ethylhexyl gallateMALLINCKRODT INC·Filed 1977·Granted Sep 5, 1978·7 cites·12 claims
- 0357US4415753AProcess for preparing p-aminophenol and alkyl substituted p-aminophenolMALLINCKRODT INC·Filed 1982·Granted Nov 15, 1983·6 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →