Inventor · name-matched record
HARTWICH DAVID
2 granted patents·0 citations·filing 2022–2022
27Inventor score
This identity is grouped by exact name match (no disambiguated inventor record was available for these filings) — it may combine same-named inventors.
Top patents by PatentIndex Score
2 records- 0164US12534410B2Refractory lining design and steel practice for low refractory waste, and refractory based on reclaimed low-impurity magnesia-carbon aggregateHARBISONWALKER INT HOLDINGS INC·Filed 2022·Granted Jan 27, 2026·0 cites·30 claims
- 0263US12595211B2Refractory lining design and separation via destructive hydrationHARBISONWALKER INT INC·Filed 2022·Granted Apr 7, 2026·0 cites·23 claims
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Identity basis: exact name match across USPTO filings. How scoring works →