"Inventing is a combination of brains and materials. The more brains you use, the less material you need."
Charles Kettering
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 |
| 4861778 | 2,3-dihydrophthalazine-1,4-diones A compound having the structural formula ##STR1## wherein R1 is hydrogen, C1 -C6 alkyl, C2 -C6 carbalkoxyalkyl or phenyl substituted with C1 -C3 alkyl or halogen; R2 | 08/29/1989 |
| 4759880 | Alkanoarachidonic acids A series of alkanoarachidonic acids have been prepared as modulators of the arachidonic acid cascade to increase the production of biologically desirable compounds and minimize the production of biologically undesirable compounds. Examples of desirable co... | 07/26/1988 |
| 4728165 | Superimposed fast transient and permanent holographic gratings A method is disclosed for producing a superimposed fast transient grating on a permanent holographic grating which provides high scattering ability, fast modulation response times, and the capability of writing and erasing signals therein. A glass host is... | 03/01/1988 |
| 4702598 | Flow cytometer A flow cytometer and a method for determining properties of single cells or other particles including passing stream of particles through a zone of analysis where a light source directs a beam of light to perpendicularly intersect the stream of particles ... | 10/27/1987 |
| 4663151 | Aluminum chlorhydrate as a prophylatic treatment for poison oak, poison ivy and poison sumac dermatitis A method for the use of aluminum chlorhydrate to prevent the dermatitis or skin irritation caused by exposure to urushiol oil of a plant of the genera Toxicodendron or Rhus. Various methods of prevention and preventing of spreading of the symptoms of the ... | 05/05/1987 |
| 4598417 | Electronic stethoscope An electronic stethoscope for reproducing at a user's ear as exactly as possible the sound pressure signals originating from a conventional diaphragm or bell type of chestpiece. The subject electronic stethoscope utilizes a signal processing approach whic... | 07/01/1986 |
| 4589782 | Thermocentrifugometric analysis A method and six devices for measuring the change in mass of a sample subjected to selected temperatures and fluid variables is disclosed. The test sample is subjected to centrifugal force to amplify the "apparent mass" of the sample by rotating the sampl... | 05/20/1986 |
| 4495636 | Multichannel radiography employing scattered radiation A diagnostic imaging system and process permits construction of an image of an area of an interfacial surface within the body of a subject, such as the heart-lung interface. The imaging system includes radiation source means for generating a shaped beam o... | 01/22/1985 |
| 4235864 | Simultaneous radio immunoassay of multiple antigens and _assay for cocaine metabolites This invention includes an antigenic conjugate of ecgonine and a carrier which elicits anti-benzoylecgonine (cocaine metabolite) serum useful for the detection of cocaine metabolites in human organs and body fluids by immunoassay. The invention also inclu... | 11/25/1980 |