American National Carbide Co.

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
E21B EARTH OR ROCK DRILLING 195

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8662208 Downhole cutting tool, cutting elements and methodJan 25, 11Mar 04, 14[E21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5467669 Cutting tool insertExpiredApr 05, 95Nov 21, 95[B21K]
4854405 Cutting toolsExpiredJan 04, 88Aug 08, 89[F21B]

Top Inventors for This Owner

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