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United States Utility Patents
3,956,460 - 3,956,469
Previous 10 Next 10
| Number | | Title |
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3,956,460 |
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Process for the treatment of gas streams containing hydrogen cyanide |
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3,956,461 |
|
Orthorhombic rare earth Hf and Zr sulfides and selenides |
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3,956,462 |
|
Process utilizing waste material consisting substantially of phosphorous acid |
|
3,956,463 |
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Production of phosphorus oxyhalide |
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3,956,464 |
|
Preparation of phosphates |
|
3,956,465 |
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Solvent purification of wet process phosphoric acid |
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3,956,466 |
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Production of silico-formic acid |
|
3,956,467 |
|
Process for producing alkali metal polysilicates |
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3,956,468 |
|
Process for the preparation of carbonyldiisocyanate |
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3,956,469 |
|
Process for preparing catalysts containing platinum metal |
For U.S. patent law, rules, and procedures see MPEP.
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