Inventor · disambiguated record
Robert L. Kopenhaver
Also filed as: KOPENHAVER ROBERT · KOPENHAVER ROBERT L
2 granted patents·162 citations·filing 1977–1981
69Inventor score
Files withCERTAIN TEED CORP2
Top patents by PatentIndex Score
2 records- 0191US4352837AMethod of manufacturing roofing shingles having multiple ply appearanceCERTAIN TEED CORP·Filed 1981·Granted Oct 5, 1982·117 cites·4 claims
- 0277US4295445AApparatus for manufacturing roofing shingles having multiple ply-appearanceCERTAIN TEED CORP·Filed 1977·Granted Oct 20, 1981·45 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →