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United States Utility Patents
5,002,630 - 5,002,639
Previous 10 Next 10
| Number | | Title |
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5,002,630 |
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Method for high temperature thermal processing with reduced convective heat loss |
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5,002,631 |
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Plasma etching apparatus and method |
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5,002,632 |
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Method and apparatus for etching semiconductor materials |
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5,002,633 |
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Conversion of pulp and paper mill waste solids to papermaking pulp |
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5,002,634 |
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Method for the delignification of wood pulp utilizing fused ring quinone compounds prepared from lignin or lignin derived substances |
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5,002,635 |
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Method for producing pulp using pre-treatment with stabilizers and refining |
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5,002,636 |
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Security paper for currency and bank notes |
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5,002,637 |
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Composite material reinforced by para-oriented aramide fiber sheet and process for preparing the same |
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5,002,638 |
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Papermaking machine in which the paper web is supported in the draw between the press and dryer sections |
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5,002,639 |
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Separation of ortho-, meta- and para-tolunitrile from ternary mixtures of the isomers |
For U.S. patent law, rules, and procedures see MPEP.
Disclaimer. Information presented on this page while believed to be reliable, is provided "as is" with no warranties of its accuracy or timeliness. For legal advice seek help of a licensed professional.
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