Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07F
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
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9/00
Compounds containing elements of Groups 5 or 15 of the Periodic Table
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C07F9/48
Phosphonous acids [RP(OH)2]; including [RHP(=O)(OH)]; Thiophosphonous acids; including [RP(SH)2], [RHP(=S)(SH)]; Derivatives thereof
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C07F9/4808
the acid moiety containing a substituent or structure which is considered as characteristic
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C07F9/485
Polyphosphonous acids or derivatives
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C07F9/485

Anti-oxidant compounds and compositions
11142695 · 2021-10-12 ·

Trisubstituted triazine antioxidants.

Novel Anti-oxidant Compounds and Compositions
20210179938 · 2021-06-17 ·

Trisubstituted triazine antioxidants.