Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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 |
| 5066464 | Prevacuum steam sterilization test pack A Bowie and Dick type prevacuum steam sterilization test pack for insertion into a sterilization chamber for indicating the presence of unacceptable levels of uncondensable gas comprises a housing, a heat sink and an indicator. The housing defines a singl... | 11/19/1991 |
| 5055268 | Air-borne alcohol sensor An air-borne chemical sensor system includes a motor and impeller to draw an air sample into a housing containing a sensor which will provide a signal for display related to the amount of a particular air-borne chemical in a given air sample. The system i... | 10/08/1991 |
| 5055267 | Thin film environmental monitor A thin film environmental monitor for monitoring a person's exposure to an analyte in an environment, comprising a portable casing for housing the monitor, a pump in the casing for obtaining an air sample, and a sensor in the casing for sensing the concen... | 10/08/1991 |
| 4994117 | Quantitative carbon dioxide detector A detector for rapid response, quantitative determination of carbon dioxide in a gas comprising one or more components, each of which comprises a carrier with a surface to be exposed to the gas, said surface including ane indicating element of a predeterm... | 02/19/1991 |
| 4970172 | Method and device for ketone measurements The present invention relates to methods and materials for the detection of ketone and aldehyde analytes in fluid samples by means of reacting analyte containing samples with a first solid matrix material to which a nitroprusside salt is coupled and a sec... | 11/13/1990 |
| 4931404 | Method and device for ketone measurement The present invention relates to methods and materials for the detection of ketone and aldehyde analytes in fluid samples by means of reacting analyte containing samples with a matrix comprising a hydrazine compound coupled to an H+ ion exchang... | 06/05/1990 |
| 4800067 | Device for detecting gases which must be treated before testing A test tube with several reagent layers affecting the detection reaction, which are separated from one another by means of a permeable interlayer, is improved so that an undesired exchange of reaction products or reagents between the layers is prevented d... | 01/24/1989 |
| 4791065 | Ethanol sensitive solid This invention is an ethanol sensitive solid useful for the colorimetric determination of ethyl alcohol in human breath samples. The solid is prepared by wetting silica gel with an acidic solution of a chromium(VI) salt and then heating to substantially d... | 12/13/1988 |
| 4790327 | Endotracheal intubation device An endotracheal intubation device for determining correct placement of an endotracheal tube in the trachea, or windpipe, of a medical patient by detecting the presence of carbon dioxide in expired air. The portable, reusable endotracheal intubation device... | 12/13/1988 |
| 4740475 | Integral substance detection device and method A disposable, self-contained, light weight integral device for detecting, by means of activating an indicator, the presence of a predetermined substance in a sample fluid which is introduced into a test chamber. The device has a deformable housing which f... | 04/26/1988 |
| 4728499 | Carbon dioxide indicator device A rapid response device for the detection of carbon dioxide in a concentration of more than 2% in a gas mixture comprising an indicator component mounted within an enclosure with a transparent window, the component comprising a carrier having fixedly atta... | 03/01/1988 |
| 4691701 | Carbon dioxide detector A carbon dioxide detector for determining the correct location of an endotracheal tube following intubation of a patient. The detector includes a housing with a first tubular member for connection to a endotracheal tube or the like, a second tubular membe... | 09/08/1987 |
| 4579826 | Method and device for analyzing human breath A device, useful for breath analysis and as an amusement device, comprising a flexible tube which can be extended from a shortened condition to an extended condition, one end of the tube being secured to a mouthpiece unit including both an input opening, ... | 04/01/1986 |
| 4492673 | Disposable sobriety tester A small, unitary, disposable sobriety self-tester of the balloon type in which a mouthpiece and a chemical indicator tube are permanently mounted on one side of an apertured base plate whose other side opens into a balloon sealed to the base plate. The mo... | 01/08/1985 |
| 4353869 | Ampoule assembly and holder An ampoule holder receives a glass ampoule with a collar surrounding the ampoule neck to permit smooth breaking away of the ampoule tip at the collar. A stopper is inserted into the ampoule mouth and a bubbler tube is then inserted through the stopper and... | 10/12/1982 |
| 4332771 | Method and device for determining the alcohol content of a person's breathing A method of determining the alcohol content of air exhaled by a person using a flow through testing tube having an alcohol indicating material therein and a sampling tube to which the air is directed which has a material therein for retaining the alcohol ... | 06/01/1982 |
| 4329318 | Capsules for determining the alcohol content of the breath A capsule for testing the alcohol content in human breath contains a solid reagent. The capsule is capable of passing a gaseous fluid or liquid in a predetermined quantity for reacting with the reagent. The capsule has a middle part which is almost cylind... | 05/11/1982 |
| 4294583 | Highly sensitive gas measuring method for the analysis of breath alcohol concentrations, using test tubes A method of testing a person's breath for the purpose of determining the alcohol content of the breath as an indication of the alcohol in the person's blood and using a carbon monoxide gas detector comprises treating the breathing air to oxidize the alcoh... | 10/13/1981 |
| 4277251 | Method and device for determining the alcohol content of a person's breathing A method of determining the alcohol content of air exhaled by a person using a flow through testing tube having an alcohol indicating material therein and a sampling tube to which the air is directed which has a material therein for retaining the alcohol ... | 07/07/1981 |
