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Browse by Date |
| Patent Number |
Title Of Patent |
Date Issued |
| 4279310 |
Soil working machine |
Jul. 21, 1981 |
| 4279309 |
Sprinkler head with noncircular throat |
Jul. 21, 1981 |
| 4279308 |
Surface casing stabilizer and hanger and method of employing the same |
Jul. 21, 1981 |
| 4279307 |
Natural gas production from geopressured aquifers |
Jul. 21, 1981 |
| 4279306 |
Well washing tool and method |
Jul. 21, 1981 |
| 4279305 |
Process for stimulating a well with a saline surfactant sulfate, alkanol and acid system |
Jul. 21, 1981 |
| 4279304 |
Wire line tool release method |
Jul. 21, 1981 |
| 4279302 |
Determining the locus of a processing zone in an oil shale retort by effluent off gas heating va... |
Jul. 21, 1981 |
| 4279301 |
Method for improving the effective permeability of formations |
Jul. 21, 1981 |
| 4279300 |
Treating fluid applicator |
Jul. 21, 1981 |
| 4279299 |
Apparatus for installing condition-sensing means in subterranean earth formations |
Jul. 21, 1981 |
| 4279298 |
Heat exchanger with condensate blow-off suppressor |
Jul. 21, 1981 |
| 4279297 |
Housing for ceramic heat recuperators and assembly |
Jul. 21, 1981 |
| 4279296 |
Segmented ring header |
Jul. 21, 1981 |
| 4279295 |
Scraped-surface heat exchanger |
Jul. 21, 1981 |
| 4279294 |
Heat pipe bag system |
Jul. 21, 1981 |
| 4279293 |
High temperature heat exchanger having porous tube sheet portions |
Jul. 21, 1981 |
| 4279292 |
Charge coupled device temperature gradient and moisture regulator |
Jul. 21, 1981 |
| 4279291 |
Subterranean heating and cooling system |
Jul. 21, 1981 |
| 4279290 |
Device for detecting gates in an automatic pouring machine for casting |
Jul. 21, 1981 |
| 4279289 |
Process for preparation of fiber-reinforced magnesium alloy materials |
Jul. 21, 1981 |
| 4279288 |
Adjustable frame apparatus |
Jul. 21, 1981 |
| 4279287 |
Method of wheel manufacture for correcting rotational non-uniformity of a pneumatic tire and whe... |
Jul. 21, 1981 |
| 4279286 |
Pneumatic tires having ornamented sidewalls, and to their manufacture |
Jul. 21, 1981 |
| 4279285 |
Apparatus and method for forming a tube article on a core |
Jul. 21, 1981 |
| 4279284 |
Pneumatic rubber tire containing enhanced inner liner or inner tube |
Jul. 21, 1981 |
| 4279283 |
High perimeter tread element |
Jul. 21, 1981 |
| 4279282 |
Barrel hoop drivers |
Jul. 21, 1981 |
| 4279281 |
Automatic branch cut-off device |
Jul. 21, 1981 |
| 4279280 |
Interchangeable dado shaft assembly for circular saws |
Jul. 21, 1981 |
| 4279279 |
Filling machine and method for low particulate chemicals |
Jul. 21, 1981 |
| 4279278 |
Apparatus for stringing electrical components having two aligned connecting wires into a belt |
Jul. 21, 1981 |
| 4279277 |
Apparatus for manufacturing a dynamolelectric field member |
Jul. 21, 1981 |
| 4279276 |
Loop picker and method of making same |
Jul. 21, 1981 |
| 4279275 |
Mechanical joinder of composite shaft to metallic end members |
Jul. 21, 1981 |
| 4279274 |
Fluid control device with disc-type flow restrictor |
Jul. 21, 1981 |
| 4279273 |
Clutch retention feature of a hand control valve |
Jul. 21, 1981 |
| 4279272 |
Flow line monitor pilot valve assembly |
Jul. 21, 1981 |
| 4279271 |
Pressure regulator and flow control valve with pre-exhaust |
Jul. 21, 1981 |
| 4279270 |
Flexible antifreeze heatconductor liquid transfer connector hose |
Jul. 21, 1981 |
| 4279269 |
Liquid flow control means for gas-liquid receptacle |
Jul. 21, 1981 |
| 4279268 |
Multi-level pressure regulating valve |
Jul. 21, 1981 |
| 4279267 |
Fluid flow proportioning device |
Jul. 21, 1981 |
| 4279266 |
Sleeve valve |
Jul. 21, 1981 |
| 4279265 |
Umbrella |
Jul. 21, 1981 |
| 4279264 |
Canopy support for beds and method |
Jul. 21, 1981 |
| 4279263 |
Cleaning apparatus |
Jul. 21, 1981 |
| 4279262 |
Hair treating agent of the pre-shampoo type |
Jul. 21, 1981 |
| 4279261 |
Automatic safety device for hulling machine |
Jul. 21, 1981 |
| 4279260 |
Occlusal instrument |
Jul. 21, 1981 |
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