Inventor · disambiguated record
Derrald H. Chappell
Also filed as: CHAPPELL DERRALD H
3 granted patents·33 citations·filing 1983–1997
70Inventor score
Files withCHAPPELL DERRALD H1
Top patents by PatentIndex Score
3 records- 0149US5857805AFlow modification apparatus, system, and methodFiled 1997·Granted Jan 12, 1999·17 cites·32 claims
- 0233US4582300AFence support structureCHAPPELL DERRALD H·Filed 1983·Granted Apr 15, 1986·10 cites·38 claims
- 0327US5678955AFlow modification system and methodFiled 1994·Granted Oct 21, 1997·6 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →