Inventor · disambiguated record
Francis Petersen
Also filed as: PETERSEN FRANCIS · PETERSEN FRANCIS C
2 granted patents·1 pending application·46 citations·filing 1993–2003
65Inventor score
Top patents by PatentIndex Score
3 records- 0174US5395442ALightweight concrete roof tilesBORAL CONCRETE PROD INC·Filed 1993·Granted Mar 7, 1995·30 cites·13 claims
- 0262US6868916B2Fire sprinkler systemsPHILLIPS PLASTICS CORP·Filed 2002·Granted Mar 22, 2005·16 cites·6 claims
- 0338US2004055763A1Sprinkler systemsPHILLIPS PLASTICS CORP·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →