Assignee
21ST CENTURY COMPANIES INC
US·2 granted patents·26 citations·filing 1994–1995
Top patents by PatentIndex Score
2 records- 0145US5454876AProcess for reducing lead leachate in brass plumbing components21ST CENTURY COMPANIES INC·Filed 1994·Granted Oct 3, 1995·16 cites·20 claims
- 0243US5612224AMethod for measuring the quantity of lead on the surface of a brass component21ST CENTURY COMPANIES INC·Filed 1995·Granted Mar 18, 1997·10 cites·13 claims
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