Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7108737 | Method for the purification of corrosive gases The present invention relates to a novel process for the preparation of high-purity chemicals with an extremely low particle count, such as ammonia gas, hydrogen fluoride and hydrogen chloride, which are also used as aqueous solutions in semiconductor technology the... | 09/19/2006 |
| 5910466 | Catalyst for purifying exhaust gas The present invention relates to a catalyst for purifying an exhaust gas, and in particular provides a catalyst for purifying an exhaust gas using a complex oxide, which is not deteriorated in its purifying performance even in a lean atmosphere containing... | 06/08/1999 |
| 5191149 | Method of refining liquified petroleum gases into aerosol propellants A method for refining liquified petroleum gases so that gases can be treated to reduce odor, olefins, moisture and wherein side reactions are minimized to produce stable aerosol by multistage liquid-liquid extraction of the aerosol using electrolyte solut... | 03/02/1993 |
| 5149459 | H2 S removal composition A process for removal of H2 S from gas streams is described, the process being characterized by use of a novel iron chelate treating solution containing a specified ferric to ferrous chelate ratio and aqueous ammonia.... | 09/22/1992 |
| 5149460 | Composition for H2 S removal A process for removal of H2 S from gas streams is described, the process being characterized by use of a novel iron chelate treating solution containing a specified ferric to ferrous chelate ratio, aqueous ammonia, and thiosulfate ion.... | 09/22/1992 |
| 5102638 | Process for the selective absorption of chlorine from CO2 -containing off-gases The invention provides a process for the selective absorption of chlorine from CO2 -containing off-gases, which comprises washing the off-gases with an aqueous solution which contains 0.1-10% by weight of NaHCO3 and 0.01-5% by weight... | 04/07/1992 |
| 4883601 | Process for purifying an aqueous, hydrogen sulfide-scrubbing solution A process for purifying an aqueous, hydrogen sulfide-scrubbing solution which contains a water-soluble transition metal component, such as a vanadium component or an iron component, in addition to at least one water-soluble organic compound, such as an ar... | 11/28/1989 |
| 4871520 | Process and composition for H2 S removal A process for removal of H2 S from gas streams is described, the process being characterized by use of a novel iron chelate treating solution containing a specified ferric to ferrous chelate ratio, aqueous ammonia, and thiosulfate ion.... | 10/03/1989 |
| 4859436 | H2 S removal process and composition A process for removal of H2 S from gas streams is described, the process being characterized by use of a novel iron chelate treating solution containing a specified ferric to ferrous chelate ratio and aqueous ammonia.... | 08/22/1989 |
| 4824443 | Gas separation by composite solvent-swollen membranes There is disclosed a composite immobulized liquid membrane of a solvent-swollen polymer and a microporous organic or inorganic support, the solvent being at least one highly polar solvent containing at least one nitrogen, oxygen, phosphorous or sulfur ato... | 04/25/1989 |
| 4781910 | Hydrogen sulfide removal and sulfur recovery The present invention is directed to a process for removing H2 S from a gaseous stream, preferably a natural gas stream, which comprises forming a buffered aqueous H2 S stream containing thiosulfate by contacting the gaseous stream w... | 11/01/1988 |
| 4737166 | Acid gas scrubbing by composite solvent-swollen membranes A composite immobilized liquid membrane suitable for acid gas scrubbing is disclosed. The membrane is a solvent-swollen polymer and a microporous polymeric support, the solvent being selected from a class of highly polar solvents containing at least one a... | 04/12/1988 |
| 4579727 | Oxidative removal of hydrogen sulfide from gas streams A process for recovering elemental sulfur from a hydrogen sulfide containing gas stream by reacting the hydrogen sulfide in the gas stream with a buffered aqueous solution enriched in thiosulfate ions at an initial pH between about 4.5 and 6.5 for residen... | 04/01/1986 |
| 4518576 | H2 S Removal from gas streams A cyclic process and composition for the removal of hydrogen sulfide from a variety of gas streams is disclosed. The gas stream containing the sour gases is contacted with a specified reactant solution and a combination crystal modifier of phosphate and t... | 05/21/1985 |
| 4515764 | Removal of H2 S from gaseous streams A cyclic process and composition for the removal of hydrogen sulfide from a variety of gas streams is disclosed. The gas stream containing the sour gases is contacted with a specified reactant solution and a combination crystal modifier of phosphate and t... | 05/07/1985 |
| 4496371 | Process for removal of hydrogen sulfide and carbon dioxide from gas streams A gas treating process is disclosed. Hydrogen sulfide and carbon dioxide are removed from a hydrocarbon vapor stream by absorption into an aqueous carbonate solution. Hydrogen sulfide picked up by the circulating carbonate solution is oxidized to produce ... | 01/29/1985 |
| 4308242 | Producing sulfur-containing compositions from gaseous sulfur compounds At least one of sulfur dioxide and a gaseous hydrosulfide is contacted with at least one of a sulfur-containing salt and a gaseous basic nitrogen compound to produce a solid, sulfur-containing composition.... | 12/29/1981 |
| 4299652 | Process for recovery of pulp mill chemicals A process is disclosed in which a waste gas containing sulfur compounds and carbon dioxide from pulp mill is contacted with an aqueous alkali solution derived from green liquor, white liquor or weak white liquor having low pH value and low sodium ion conc... | 11/10/1981 |
| 4199472 | Oxygen absorbent composition An oxygen absorbent composition consisting essentially of (a) an oxygen absorbent comprising a dithonite as a main component and (b) a fiber material in an amount of from about 1 to about 50 parts by weight per 100 parts by weight of the oxygen absorbent ... | 04/22/1980 |
| 4104192 | Oxygen absorbent An oxygen absorbent comprising a dithionite and at least one compound having water of crystallization or water of hydration is disclosed.... | 08/01/1978 |
| 4102803 | Oxygen-consuming composition An effective oxygen-consuming composition for packages, containers, or other closed spaces, especially containing an article susceptible to oxidative deterioration, comprises a dithionite for reacting with oxygen, sufficient alkaline material to at least ... | 07/25/1978 |
| 4098639 | Process for reducing the requirement of fresh chemicals without increasing emissions in the pulping of cellulosic material A process is provided for reducing the requirement of fresh chemicals without increasing emissions in the pulping of cellulosic material with alkaline sodium- and sulfur-containing-sulfate pulping liquor, which comprises evaporating and burning spent sulf... | 07/04/1978 |
| 3956460 | Process for the treatment of gas streams containing hydrogen cyanide Ammonia, hydrogen cyanide and hydrogen sulfide contained in gas streams are separated from the gas streams by contacting the gas stream with an aqueous solution containing free oxygen for a time sufficient for the ammonia, hydrogen sulfide and hydrogen cy... | 05/11/1976 |
