Inventor · disambiguated record

Calvin W. Schiefferly

Also filed as: SCHIEFFERLY CALVIN W

2 granted patents·104 citations·filing 2004–2006

69Inventor score

Technology areasE01F

Files withSTATE OF CALIFORNIA DEPT OF TR2

Top patents by PatentIndex Score

2 records

0190US7410321B1Mobile work zone protection deviceSTATE OF CALIFORNIA DEPT OF TR·Filed 2006·Granted Aug 12, 2008·38 cites·20 claims
0290US7125198B2Mobile work zone protection deviceSTATE OF CALIFORNIA DEPT OF TR·Filed 2004·Granted Oct 24, 2006·66 cites·12 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →