Inventor · disambiguated record
John Cain Blackwood
Also filed as: BLACKWOOD JOHN · BLACKWOOD JOHN C · BLACKWOOD JOHN CAIN · BLACKWOOD JR JOHN
11 granted patents·2 pending applications·70 citations·filing 1976–2025
88Inventor score
Top patents by PatentIndex Score
13 records- 0190US11856255B2Selecting ads for a video within a messaging systemSNAP INC·Filed 2021·Granted Dec 26, 2023·2 cites·11 claims
- 0290US11003997B1Machine learning modeling using social graph signalsSNAP INC·Filed 2017·Granted May 11, 2021·13 cites·20 claims
- 0380US4018333AMetal fastener sticks and process of preparing same by curing polymeric binder for said under conditions of U.V. irradiationSTEPAN CHEMICAL CO·Filed 1976·Granted Apr 19, 1977·29 cites·28 claims
- 0478US2025365469A1Selecting ads for a video within a messaging systemSNAP INC·Filed 2025·Application pending·0 cites
- 0577US12401848B2Selecting ads for a video within a messaging systemSNAP INC·Filed 2023·Granted Aug 26, 2025·0 cites·18 claims
- 0675US4204493ASewing machine bed extension latchSINGER CO·Filed 1978·Granted May 27, 1980·10 cites·3 claims
- 0772US2024202550A1Machine learning modeling using social graph signalsSNAP INC·Filed 2024·Application pending·0 cites
- 0865US11966853B2Machine learning modeling using social graph signalsSNAP INC·Filed 2021·Granted Apr 23, 2024·0 cites·20 claims
- 0959US5071107AMetallurgical tundish with filterBETHLEHEM STEEL CORP·Filed 1990·Granted Dec 10, 1991·8 cites·2 claims
- 1042US4408553ALow torque direct dialing pattern selection mechanismSINGER CO·Filed 1980·Granted Oct 11, 1983·4 cites·6 claims
- 1140US4499839AReverse feed controlling mechanism for a sewing machineSINGER CO·Filed 1983·Granted Feb 19, 1985·2 cites·11 claims
- 1239US4895090ALost motion compensation for sewing machine needle vibrating gateSSMC INC·Filed 1989·Granted Jan 23, 1990·2 cites·4 claims
- 1329US4735162ADevice for indicating by illumination the selected stitch pattern on a sewing machineSSMC INC·Filed 1987·Granted Apr 5, 1988·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →