Inventor · disambiguated record
Robert David Harper
Also filed as: HARPER ROBERT D · HARPER ROBERT DAVID
4 granted patents·8 citations·filing 2018–2023
62Inventor score
Top patents by PatentIndex Score
4 records- 0189US11643287B2Systems and methods for conveying a non-dry frac proppantWALKER DAWSON INTERESTS INC·Filed 2018·Granted May 9, 2023·8 cites·11 claims
- 0263US12006476B2Production of fuel products from waste rubber materialYANCHEP TECH LIMITED·Filed 2023·Granted Jun 11, 2024·0 cites·8 claims
- 0355US11970663B2Production of fuel products from waste rubber materialYANCHEP TECH LIMITED·Filed 2019·Granted Apr 30, 2024·0 cites·8 claims
- 0438US12234419B2Production of fuel products from waste rubber materialCIRCTEC KNOWLEDGE LTD·Filed 2021·Granted Feb 25, 2025·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →