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whatUseek Directory Site Listings:
 
Corporate Intelligence - Patent and trademark searching and document ordering.
 
Delphion - Free patent searches of US, EPO, and WIPO data, including web access to scanned images of most indexed documents. U.S. data begins in 1971.
 
IP Search Engine - Search for various types of information relating to patents and trademarks.
 
PatentMiner - Use natural language queries to search patent full text, and obtain patent bibliographic searches.
 
STO - Conduct internet patent searches.
 
Sullivan Research Services - Patent search and other patent services provided.
 
USPAT - Patent copies and searches from 1790 to the present.
 
Woolcott & Co. - Providing services in the areas of patent, trademark and literature searching, as well as technical translations.
 
World Patent Technology - Novelty searches, validity searches and patent monitoring.
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