Chemical Patents
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240:
PAPERCHEM
324:
German Patents Fulltext
325:
Chinese Patents Fulltext
340:
CLAIMS®/U.S. Patents
347:
JAPIO - Patent Abstracts of Japan
348:
European Patents Fulltext
349:
WIPO/PCT Patents Fulltext
351:
Derwent World Patents Index®
355:
Derwent Chemistry Resource
371:
French Patents
399:
CA SEARCH® - Chemical Abstracts® (1967- present)
652:
U.S. Patents Fulltext (1971-1975)
654:
U.S. Patents Fulltext (1976-present)
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