Inventor · disambiguated record
Richard A. Dortzbach
Also filed as: DORTZBACH RICHARD A
3 granted patents·43 citations·filing 1982–1997
71Inventor score
Files withDORTZBACH RICHARD A2
Top patents by PatentIndex Score
3 records- 0150US5402830AThermal pipe guardFiled 1993·Granted Apr 4, 1995·23 cites·9 claims
- 0240US5848931AChimney top spark arrester and damperDORTZBACH RICHARD A·Filed 1997·Granted Dec 15, 1998·12 cites·7 claims
- 0337US4386571AAdjustable spark arrester for fireplace flueDORTZBACH RICHARD A·Filed 1982·Granted Jun 7, 1983·8 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →