Inventor · disambiguated record
Donald R. Zierer
Also filed as: ZIERER DONALD R
2 granted patents·17 citations·filing 2004–2006
58Inventor score
Files withZIERER INVEST ENTPR LLC2
Top patents by PatentIndex Score
2 records- 0174US7836645B1Devices and methods for protecting exposed pipe endsZIERER INVEST ENTPR LLC·Filed 2006·Granted Nov 23, 2010·10 cites·17 claims
- 0246US7464507B2Devices and methods for protecting exposed pipe ends during constructionZIERER INVEST ENTPR LLC·Filed 2004·Granted Dec 16, 2008·7 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →