Inventor · disambiguated record
Robert H. Vanderwerf
Also filed as: VANDERWERF ROBERT H
8 granted patents·132 citations·filing 1977–1984
88Inventor score
Technology areasG01C
Top patents by PatentIndex Score
8 records- 0190US4168578AFour way corner levelVY DAWN INC·Filed 1978·Granted Sep 25, 1979·57 cites·14 claims
- 0282USD257330SCorner levelVY DAWN INC·Filed 1978·Granted Oct 14, 1980·17 cites·1 claims
- 0375USD255504SSpirit level vial containerVY DAWN INCORPORATED·Filed 1978·Granted Jun 24, 1980·14 cites·1 claims
- 0473USD261626SCorner levelVANDERWERF ROBERT H·Filed 1979·Granted Nov 3, 1981·11 cites·1 claims
- 0572USD253581SFour way corner levelVY DAWN INC·Filed 1977·Granted Dec 4, 1979·11 cites·1 claims
- 0667USD288541SFour way corner levelVANDERWERF ROBERT H·Filed 1984·Granted Mar 3, 1987·10 cites·1 claims
- 0758USD288539SFour way corner levelVANDERWERF ROBERT H·Filed 1984·Granted Mar 3, 1987·7 cites·1 claims
- 0851USD288540SFour way corner levelVANDERWERF ROBERT H·Filed 1984·Granted Mar 3, 1987·5 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →