Assignee
SELKIRK JR WILLIAM ROBERT
US·3 granted patents·1 citations·filing 2019–2023
Top patents by PatentIndex Score
3 records- 0172US11358906B2Black nitrogen—a milk-based fertilizerSELKIRK JR WILLIAM ROBERT·Filed 2019·Granted Jun 14, 2022·1 cites·20 claims
- 0257US12384731B2Black nitrogen—a milk-based fertilizer composition with a soluble coal dust ingredientSELKIRK JR WILLIAM ROBERT·Filed 2023·Granted Aug 12, 2025·0 cites·21 claims
- 0352US12319631B2Black nitrogen—a milk-based fertilizer composition with coal dustSELKIRK JR WILLIAM ROBERT·Filed 2022·Granted Jun 3, 2025·0 cites·21 claims
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