| |
 |
Browse by Date |
| Patent Number |
Title Of Patent |
Date Issued |
| 4252577 |
Method and apparatus for treating metal scrap cuttings |
Feb. 24, 1981 |
| 4252576 |
Epitaxial wafer for use in production of light emitting diode |
Feb. 24, 1981 |
| 4252575 |
Producing hydrous oxide of controlled thickness on aluminum capacitor foil |
Feb. 24, 1981 |
| 4252574 |
Low leakage N-channel SOS transistors and method of making them |
Feb. 24, 1981 |
| 4252573 |
Collector grid for CdS/CuS photovoltaic cells |
Feb. 24, 1981 |
| 4252572 |
Apparatus for cleaning a metal strip in a rolling mill |
Feb. 24, 1981 |
| 4252571 |
Bone char and activated carbon mixtures for sugar liquor purification |
Feb. 24, 1981 |
| 4252570 |
Bismuth oxyhalide solid solution |
Feb. 24, 1981 |
| 4252569 |
Process for preparing alkali metal siliconates |
Feb. 24, 1981 |
| 4252568 |
Process for preparing calcined gypsum and gypsum board using ligno sulfonates |
Feb. 24, 1981 |
| 4252567 |
Glasses for eyeglass lenses |
Feb. 24, 1981 |
| 4252566 |
Cumarinic pigments |
Feb. 24, 1981 |
| 4252565 |
Stabilized phthalocyanines |
Feb. 24, 1981 |
| 4252564 |
Method for cleaning bomb-reduced uranium derbies |
Feb. 24, 1981 |
| 4252563 |
Process for the fuming treatment of metallurgical slag |
Feb. 24, 1981 |
| 4252562 |
Alloy for brazing titanium |
Feb. 24, 1981 |
| 4252561 |
Chromium-alloyed steel which is corrosion resistant to caustic alkaline solution |
Feb. 24, 1981 |
| 4252560 |
Pyrometallurgical method for processing heavy nonferrous metal raw materials |
Feb. 24, 1981 |
| 4252559 |
Process for processing cast iron suitable for foundry moulding |
Feb. 24, 1981 |
| 4252558 |
Method for producing a platinoid comprising a dispersed phase of a refractory oxide |
Feb. 24, 1981 |
| 4252557 |
M-diurethanes |
Feb. 24, 1981 |
| 4252556 |
Method of increasing plant yield with soil conditioners |
Feb. 24, 1981 |
| 4252555 |
Method of increasing plant yield with soil conditioners |
Feb. 24, 1981 |
| 4252554 |
Herbicidal ester derivatives of N-arylthio-N-phosphonomethylglycinonitrile |
Feb. 24, 1981 |
| 4252553 |
Process for production of fertilizers |
Feb. 24, 1981 |
| 4252552 |
Shaping glass sheets using molds of different shapes |
Feb. 24, 1981 |
| 4252551 |
Method of continuously preparing molten glass utilizing waste glass as part of ingredients |
Feb. 24, 1981 |
| 4252550 |
Method and apparatus for the integration of newly formed filaments into a continuous strand |
Feb. 24, 1981 |
| 4252549 |
Crystallization via porous tube heat transfer |
Feb. 24, 1981 |
| 4252548 |
Carbon dioxide removal from methane-containing gases |
Feb. 24, 1981 |
| 4252547 |
Gas cleaning unit |
Feb. 24, 1981 |
| 4252546 |
Process and apparatus for the recovery of the solvent from the exhaust air of dry cleaning machi... |
Feb. 24, 1981 |
| 4252545 |
Process for the fractional desublimation of pyromellitic acid dianhydride |
Feb. 24, 1981 |
| 4252544 |
Alumina abrasive grains and method for manufacturing the same |
Feb. 24, 1981 |
| 4252543 |
Process for quenching and cleaning a fuel gas mixture |
Feb. 24, 1981 |
| 4252542 |
Anti-static additives |
Feb. 24, 1981 |
| 4252541 |
Method for preparation of ethers |
Feb. 24, 1981 |
| 4252540 |
Stabilizer for mixture fuels |
Feb. 24, 1981 |
| 4252539 |
Solid fuel composition |
Feb. 24, 1981 |
| 4252538 |
Apparatus and method for antibody screening, typing and compatibility testing of red blood cells |
Feb. 24, 1981 |
| 4252537 |
Quantification of the munitions, HMX, RDX, and TNT in waste water by liquid chromatography |
Feb. 24, 1981 |
| 4252536 |
Method and system for measuring blood coagulation time |
Feb. 24, 1981 |
| 4252535 |
Process for dyeing uniformly polyacrylonitrile fiber materials |
Feb. 24, 1981 |
| 4252534 |
Dyeing assistants and their use in dyeing synthetic fibre material |
Feb. 24, 1981 |
| 4252533 |
Sulphur dyestuffs which are ready for dyeing, and processes for dyeing and printing with sulphur... |
Feb. 24, 1981 |
| 4252532 |
Process for dyeing evenly synthetic fibrous materials |
Feb. 24, 1981 |
| 4252531 |
Process for dyeing wool or nylon fibers |
Feb. 24, 1981 |
| 4252530 |
Process for dyeing and printing synthetic hydrophobic fiber material |
Feb. 24, 1981 |
| 4252529 |
Copper, cobalt or chromium complex monoazo compounds, processes for their manufacture, their use... |
Feb. 24, 1981 |
| 4252528 |
Lubricant compositions for finishing synthetic fibers |
Feb. 24, 1981 |
|
|
|
