Celebrity Inventors
Walt Disney was no Mickey Mouse inventor. He devised a serious animation camera which he patented. With the device, his company created "Snow White".
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 |
| 7247493 | Reusable pH sensor device and related methods The present invention relates to devices, methods, and kits for quickly and easily measuring and monitoring the pH of aquatic environments, such as lakes, streams, drinking waters, fisheries, aquariums, pools, hot-tubs, and spas. The current invention includes devic... | 07/24/2007 |
| 7059491 | Apparatus and method for observing chemical substances An apparatus and method for observing a chemical substance. In one embodiment, the apparatus includes a vessel having a base portion and an at least partially transparent wall portion depending from and extending away from the base portion. The base portion and the ... | 06/13/2006 |
| 6954560 | Attenuated total reflection spectroscopic analysis of organic additives in metal plating solutions The present invention relates to method and apparatus for determining concentrations of organic additives in metal plating solutions, based on infrared spectroscopy, and more specifically attenuated total reflection infrared spectroscopy (ATR-IR). ... | 10/11/2005 |
| 5565976 | Method and apparatus for detecting and compensating for a kink in an optic fiber A method and apparatus are provided for detecting and compensating for a kink in an optical fiber. A distal sensor (11) monitors a level of a parameter in an environment in which the distal sensor is immersed. The distal sensor is disposed at a tip of the... | 10/15/1996 |
| 5559173 | System for controlling the color of compounded polymer(s) using in-process color measurements A system for controlling the color of compounded polymer(s) comprises: a compounder for mixing the constituents of the compounded polymer(s) to produce a substantially homogeneous mixture; a sensor for measuring the color of the substantially homogeneous ... | 09/24/1996 |
| 5506148 | Method for activation of polyanionic fluorescent dyes in low dielectric media with quaternary onium compounds The invention pertains to a method for generating the fluorescence of polyanionic fluorophores in low dielectric media with fluorescence activation produced by specific quaternary onium compounds. The method may be used for measuring an analyte and may be... | 04/09/1996 |
| 5366601 | Method for separating ionic species using capillary electrophoresis A technique for separating, identifying and measuring ions in solution by capillary zone electrophoresis is described, which provides improved sensitivity and resolution of anionic species. The method involves introducing a sample containing the ionic spe... | 11/22/1994 |
| 5307146 | Dual-wavelength photometer and fiber optic sensor probe A dual wavelength optical sensor for measuring chemical properties of a particular quantity, the optical sensor including a sensor probe having a thin sensing film whose optical characteristics are responsive to the chemical properties of the measured qua... | 04/26/1994 |
| 5218212 | Device for optically detecting a chemical change in fluid A device for optically detecting a chemical change of fluid comprises a prism placed in fluid to be tested and a layer of color indication material formed on a surface of the prism to thereby detect a chemical change of fluid by means of a transmitted lig... | 06/08/1993 |
| 5128005 | Method for separating ionic species using capillary electrophoresis A technique for separating, identifying and measuring ions in solution by capillary zone electrophoresis is described, which provides improved sensitivity and resolution of anionic and cationic species. The method involves introducing a sample containing ... | 07/07/1992 |
| 5104506 | Method for separating ionic species using capillary electrophoresis A technique for separating, identifying and measuring ions in solution by capillary zone electrophoresis is described, which provides improved sensitivity and resolution of anionic species. The method involves subjecting a sample containing the ionic spec... | 04/14/1992 |
| 5096671 | Fiber optic chemical sensors incorporating electrostatic coupling Fiber optic chemical sensors and materials suitable for use in making same are provided. A charged hydrogel matrix membrane is suitable for affixing to the distal end portion and the like of an optical fiber waveguide, which charged hydrogel matrix has di... | 03/17/1992 |
| 5091800 | Cover layer for optical ion sensors In order to eliminate interferences of an optical or chemical nature, preferably in optical sensors, a cover layer is provided which comprises a hydrophilic, ion-permeable polymer membrane containing precious metal pigments deposited by a reduction or red... | 02/25/1992 |
| 5047208 | Blood gas monitoring sensors Colorimetric, fiber optic sensors for measuring pH, PCO2 and/or other chemical parameters of the blood. The sensors are fabricated using a single optical fiber, which is provided with a chamber at its distal end containing a pH sensitive dye. L... | 09/10/1991 |
| 5039492 | Optical pH and gas concentration sensor An optical pH sensor and a gas sensor utilizing the pH sensor. The pH sensor includes an indicator whose absorbance is a function of the concentration of hydronium ions in a media surrounding the indicator. Light transmitted and reflected through the indi... | 08/13/1991 |
| 5004583 | Universal sensor cartridge for use with a universal analyzer for sensing components in a multicomponent fluid The apparatus employs a method for accurate, reproducible analytical solution evaluation eliminating the need for a reference sensor by determining the activity of selected species employing species specific sensors and species combination sensors in conj... | 04/02/1991 |
| 4907037 | Active chemical transducer with optical fibres and reagent supporting means It is intended for measuring a given characteristic of a fluid medium and comprises at least one assembly having an appropriate reagent for said measurement and serving to interact with the fluid medium, reagent support means, an optical fibre (2) called ... | 03/06/1990 |
| 4851665 | System for sensing ions in aqueous solution The system for sensing ions in aqueous solution such as an electroplating bath includes a light source (18) which delivers light including a selected wavelength through a series of optical fibers (20, 24, 26, 32) to probe (14). The probe is partially imme... | 07/25/1989 |
| 4560248 | Fibre optic sensor with bonded dye For detecting changes in chemical or physical parameters an optical fibre core has bonded to its surface a chromophore responsive to the parameter. The core preferably has a porous surface with the chromophore coating extending into the porous structure.... | 12/24/1985 |
| 4519710 | Colorimeter A colorimeter for continuously monitoring the concentration of an ionic species in an aqueous solution comprises a source 30 of optical radiation, a flow cell 10 including three flow chambers 11, 12 and 13 interconnected so that a sample of the solution c... | 05/28/1985 |
| 4252617 | Method and apparatus for spectrophotometry Method and apparatus for spectrophotometric investigation of products of electrochemical reactions in which a solution containing at least one dissolved initial product is directed essentially axially towards a rotating disc electrode surrounded by an opt... | 02/24/1981 |
| 4200110 | Fiber optic pH probe A fiber optic pH probe suitable to be implanted in tissue for physiological studies is disclosed. The probe includes an ion permeable membrane envelope which encloses the ends of a pair of optical fibers. A pH sensitive dye indicator composition is presen... | 04/29/1980 |
| 3964831 | Visual color comparator with integral dual dip cells A visual color comparator for testing the condition of a liquid and utilizing dual liquid dip cells which are integrally connected together so that identical sample quantities of a liquid can be obtained by dipping the dual cells into the liquid, and a mo... | 06/22/1976 |
