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United States Utility Patents
4,042,030 - 4,042,039
Previous 10 Next 10
| Number | | Title |
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4,042,030 |
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Oil recovery by viscous waterflooding |
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4,042,031 |
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Plugging subterranean earth formations with aqueous epoxy emulsions containing fine solid particles |
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4,042,032 |
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Methods of consolidating incompetent subterranean formations using aqueous treating solutions |
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4,042,033 |
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Combination subsurface safety valve and chemical injector valve |
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4,042,034 |
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Method for increasing the recovery of natural gas from a geo-pressured aquifer |
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4,042,035 |
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Apparatus for removing, cleaning and replacing railroad ballast |
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4,042,036 |
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Electric impact tool |
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4,042,037 |
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Lawn edging device |
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4,042,038 |
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Rotary harrows with supporting member positioned to protect soil working members |
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4,042,039 |
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Rotary harrows |
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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