Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 4540602 | Process for the preparation of activated pharmaceutical compositions Disclosed is a process for the preparation of an activated pharmaceutical composition containing a solid drug that is scarcely soluble in water, the pharmaceutical composition being characterized in that, when it is administered orally, the drug is readil... | 09/10/1985 |
| 4508702 | Sustained release aspirin A sustained release aspirin dosage form permits the continuous delivery of aspirin into the gastrointestinal tract for a period of at least eight hours. The sustained release aspirin dosage form comprises a plurality of polymerically coated aspirin crysta... | 04/02/1985 |
| 4490407 | Method for preparing galenic formulations particularly for pharmaceutical, dietetical, cosmetic and diagnostic uses A method for preparing a galenic formulation for pharmaceutical, dietetic, cosmetic or diagnostic use, comprising forming a liquid mixture containing at least one active ingredient and at least one film-forming substance, spraying the mixture at a tempera... | 12/25/1984 |
| 4486471 | Process for preparing ethylcellulose microcapsules Pharmaceutically active compound-containing microcapsules the coating walls of which consist essentially of ethylcellulose and a water-insoluble, acid-soluble polymer material are disclosed. A method of preparing said microcapsules is also disclosed.... | 12/04/1984 |
| 4462982 | Microcapsules and method of preparing same Ethylcellulose microcapsules, wherein a polymer material which shows at least 1.2 times increase in weight by immersing it in water at 37° C. is incorporated into the ethylcellulose coating walls and/or the core material thereof, are disclosed. Said ethy... | 07/31/1984 |
| 4459279 | Retard form of pharmaceuticals with insoluble porous diffusion coatings A pharmaceutical dosage unit retard form having a constant, pH-independent release rate of active ingredient, consisting of a core comprising an active ingredient, and a semi-permeable diffusion coating over the core, where the coating consists of a water... | 07/10/1984 |
| 4456628 | Process for film-coating a particulate solid, and emulsions for conducting the process A process of coating a particulate medicinal agent; comprising the application to said medicinal agent of a liquid composition containing a water-insoluble film-forming agent, a lipophilic solvent, a hydrophilic solvent and water, said liquid composition ... | 06/26/1984 |
| 4443497 | Method of preparing microcapsules Microcapsules are prepared by conducting the phase-separation of a coating polymer material in the presence of ethylcellulose. Ethylcellulose present in the phase separation system minimizes the coagulation of the coating polymer material.... | 04/17/1984 |
| 4411933 | Process for preparing ethylcellulose microcapsules A process for preparing ethylcellulose microcapsules by flocculation of the ethylcellulose is disclosed. In this process, the flocculation of the ethylcellulose is carried out in the presence of an organosilicon polymer or in the presence of said organosi... | 10/25/1983 |
| 4389331 | Process for preparing pharmaceutically active compound-containing microcapsules A process for preparing ethylcellulose microcapsules of a pharmaceutically active compound by phase separation-coacervation of the ethylcellulose is disclosed. In this process, phospholipids are used as a phase-separation-inducing agent.... | 06/21/1983 |
| 4321253 | Suspension of microencapsulated bacampicillin acid addition salt for oral, especially pediatric, administration A novel formulation of bacampicillin for oral administration is disclosed. Microcapsules comprising an acid addition salt of bacampicillin coated with a mixture of ethyl cellulose:water-soluble or water-permeable filler material are suspended in a buffere... | 03/23/1982 |
| 4316884 | Sustained release pharmaceutical formulation It has been found that indoprofen can be used in increased safety at its effective anti-inflammatory dose in humans and that the activity of indoprofen is greatly prolonged by microencapsulating microparticles of indoprofen in a solid protective coating o... | 02/23/1982 |
| 4259315 | Controlled release potassium dosage form Pharmaceutical compositions for treating potassium deficiency in monogastric animals comprising gelatin capsules containing mixture comprised of controlled release form of microencapsulated potassium salt and hydrophilic surfactant are disclosed.... | 03/31/1981 |
| 4252786 | Controlled release tablet The rate of release of medicament from a controlled release tablet having a polymeric vinylpyrrolidonecarboxyvinyl hydrophilic core is improved by coating the medicament-containing core with a substantially insoluble rupturable film which is water permeab... | 02/24/1981 |
| 4218333 | Process for the preparation of pharmaceutical substance-containing microcapsules A process for the preparation of pharmaceutical substance-containing microcapsules by liquid-liquid phase separation is disclosed. In this process, ethyl cellulose having an ethoxy content of about 48 to about 49.5% by weight is used as a wall-forming age... | 08/19/1980 |
| 4205060 | Microcapsules containing medicament-polymer salt having a water-insoluble polymer sheath, their production and their use Microcapsules comprising a core containing a water-soluble salt of a medicament and a polymer, e.g., the salt of a medicament containing an amine-group and a carboxyl group containing polymer, and a sheath of a water-insoluble film forming polymer, e.g., ... | 05/27/1980 |
| 4153677 | Controlled-release composition A controlled-release pharmaceutical dosage component comprising a microencapsulated bronchodilator agent of the ଲ-adrenergic agonist type is prepared by organic phase separation. Pharmaceutical formulations containing these components exhibit prolon... | 05/08/1979 |
| 4150110 | Coated granules of polyacrylic alkali metal salts and method of producing same Granules of polyacrylic alkali metal salts are coated with a water-insoluble but water-permeable coating agent.... | 04/17/1979 |
| 4127647 | Process for preparation of stable amorphous macrolide antibiotic solids Amorphous solids of macrolide antibiotics which are stable with the passage of time are prepared by dissolving a macrolide antibiotic and a cellulose polymer selected from the group consisting of ethyl cellulose, hydroxypropyl cellulose and hydroxypropylm... | 11/28/1978 |
| 4123382 | Method of microencapsulation Solids are added to a suspension of heat softened ethylcellulose capsules and are then encapsulated within the soft capsule. Cooling permits recovery of the desired encapsulated product.... | 10/31/1978 |
| 4107072 | Process of isolating cyclohexane-free ethylcellulose microcapsules Ethylcellulose walled microcapsules, obtained from cyclohexane medium are heavily solvated with cyclohexane and tend to form lumps even after drying. Displacements of cyclohexane by pentane, hexane, heptane or octane or mixtures thereof during the isolati... | 08/15/1978 |
| 4010038 | Process for producing microcapsules In a process for producing microcapsules of complex hydrophilic colloid material enclosing fine particles of a hydrophobic substance, the improvement characterized in that: An acid-treated gelatin and at least one of carboxy-modified cellulose derivatives... | 03/01/1977 |
| 3960757 | Process for encapsulation of medicaments Encapsulated medicaments are prepared by dissolving a wall material for capsules in at least one organic solvent poorly miscible with water which has a boiling point of less than 100°C., a vapor pressure higher than that of water and a dielectric constan... | 06/01/1976 |
