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| Number | Title | Issue Date |
| 5948558 | High energy density boride batteries Borides generally can produce a cell with a high energy density. High power densities are also achievable using borides that are reasonably good conductors of electricity. High density is important to achieve high energy density. Another important factor ... | 09/07/1999 |
| 5804329 | Electroconversion cell Boron redox species can provide electrochemical cells for battery or energy storage systems that are characterized by favorable specific energy, energy density, capital and operating cost, recharge efficiency, safety, environmental impact, serviceability ... | 09/08/1998 |
| 5468811 | Hydrophilic composite polymer articles formed from a settable paste comprising a mixture of hydrophilic polymer and unsaturated monomer Hydrophilic composite polymer articles are provided which comprise at least one hydrophilic polymer in a powder form and one or more liquid components of which at least one is hydrophilic and which can be polymerized with said hydrophilic polymer. This co... | 11/21/1995 |
| 5177154 | Environmental coating solution A water compatible terpolymer for sealing and coating building materials which protects surfaces from environmental staining agents. The terpolymer is created by polymerizing a HEMA:SMA co-polymer with another monomer which contains either free acid or ba... | 01/05/1993 |
| 5045266 | Process of making a hearing aid earmold in situ An acoustically sealed earmold for a hearing aid insertable into the ear of individuals with impaired hearing can be prepared in situ employing the hydrophilic composite polymer materials described herein. Such composite materials include at least one hyd... | 09/03/1991 |
| 4957436 | Dental pump system for chemical caries removal A fluid dispensing system comprising a flexible container for simultaneously dispensing two fluids, and dispensing apparatus for controlled compression of the container. The flexible container includes two separate and independent compartments, each compa... | 09/18/1990 |
| 4770632 | Delivery system for dental treatment solution The present invention relates to an improved delivery system for a dental treatment solution. More particularly, the apparatus disclosed includes a housing defining a well, a reservoir container for the dental treatment solution, and a pump for delivery o... | 09/13/1988 |
| 4738530 | Inspection device An inspection device for visually ascertaining the desired alignment of a contact lens in a tinting fixture comprises a base and a platform having a flat surface and mounted to the base for rotation relative thereto. The device also includes an arrangemen... | 04/19/1988 |
| 4736872 | Disposable tint pack assembly for contact lens tinting A disposable tint pack assembly is provided for use in a contact lens tinting apparatus. This disposable assembly includes a plurality of disposable packages, each for containing a supply of a given fluid material for use in a contact lens tinting process... | 04/12/1988 |
| 4617557 | Medication compliance aid for unit dose packaging A compliance aid for medication including electronic circuitry to remind the patient when the next dose is due, in which removal of a dose of medicine interrupts individual conductors within the medication package and resets a timer and alarm. The electro... | 10/14/1986 |
| 4606342 | Cautery device having a variable temperature cautery tip A portable cauterizing device having a variable temperature cautery tip that is activated by switching means that also performs the additional function of varying the temperature of the cautery tip so that the device can be activated and the temperature o... | 08/19/1986 |
| 4587129 | Hydrophilic gels containing high amounts of fragrance A copolymer of at least one hydroxy (lower alkyl) 2-alkenoate, e.g., hydroxyethyl methacrylate, with 35 to 80%, preferably 50 to 80%, of at least one diester of an alkenedioic acid in hydrogel form is employed to entrap flavors and fragrances in an amount... | 05/06/1986 |
| 4452925 | Biologically stabilized compositions comprising collagen as the minor component with ethylenically unsaturated compounds used as contact lenses Hydrogels are prepared by subjecting to poymerization conditions an aqueous admixture comprising a major amount of an organic monomer which is characterized by a polymerizable ethylenic group ##STR1## as illustrated by N,N-dimethylacrylamide, 2-hydro... | 06/05/1984 |
| 4407766 | Molds and procedure for producing truncated contact lenses Truncated contact lenses are produced in a direct casting operation using a mold assembly of a male mold member and a female mold member, both of which have molding surfaces and only one of which is provided with an inwardly flexible continuous rim portio... | 10/04/1983 |
| 4388428 | Biologically stabilized compositions comprising collagen as the major component with ethylenically unsaturated compounds used as contact lenses Biologically stabilized compositions are prepared by subjecting to polymerization conditions an aqueous admixture comprising from 50 to about 70 weight percent solubilized collagen and from about 30 to less than 50 weight percent of an organic compound wh... | 06/14/1983 |
| 4388436 | Permeable contact lens A hydrophilic soft contact lens is made from a cross-linked copolymer of an N,N-(C1 -C2 alkyl)acrylamide and cyclohexyl methacrylate. The lens has much higher oxygen permeability and better mechanical properties than conventional hyd... | 06/14/1983 |
| 4303066 | Burn dressing A two package system useful in forming a rapid plastic film, i.e., a burn dressing or burn bandage, on the burn of the skin. One package contains particulate hydrophilic polymer such as 2-hydroxyethyl methacrylate polymer and the other package contains a ... | 12/01/1981 |
| 4298002 | Porous hydrophilic materials, chambers therefrom, and devices comprising such chambers and biologically active tissue and methods of preparation Hydrophilic polymeric chambers for encapsulating biologically active tissue and methods for their preparation. The tissue refers to those essential cellular components of a particular organ that is capable of receiving, modifying or secreting hormones. A ... | 11/03/1981 |
| 4252865 | Highly solar-energy absorbing device and method of making the same The invention contemplates a highly solar-energy absorbing device wherein the surface exposed to incident solar energy is a particularly characterized roughness of an amorphous semiconductor material, the particular characterization being that of an array... | 02/24/1981 |
| 4211588 | Method of manufacturing a vented piercing device for intravenous administration sets A method of manufacturing a vented piercing device having a piercing spike which is considerably smaller in diameter than a standard device. The smaller diameter permits use of the device with small volume parenteral containers normally punctured with bot... | 07/08/1980 |
| 4208365 | Method and apparatus for molding toric contact lenses A mold is described including at least one flexible mold member fabricated from thermoplastic polymeric materials. Desirably, the flexible mold member is placed within a circular torque ring and pressure is applied to flex the mold member into a selected ... | 06/17/1980 |
| 4173223 | Chamber assembly for infusion and transfusion apparatus A chamber assembly for infusion and transfusion apparatus comprising a drip chamber having a pump chamber and an observation chamber connected together and connecting a tubing adaptor to a piercing device assembly. The cross-sectional area of the observat... | 11/06/1979 |
| 4169795 | Low profile filter A low profile filter assembly for use in IV sets and the like includes a pair of spaced apart, axially aligned inlet and outlet filter adaptors secured to inlet and outlet ends, respectively, of a filter tube. A generally conically shaped filter member is... | 10/02/1979 |
| 4153042 | Solar collector A solar collector comprised of a frame and a plurality of tubular collector elements. Each collector element is comprised of an outer transparent tube, a metallic absorber tube, and an intermediate transparent tube which encloses the absorber tube. The ab... | 05/08/1979 |
| 4147764 | Hydrophilic absorbents Products are prepared of solid hydrogel matrixes having entrapped therein high-surface area sorbent materials, preferably activated carbon. The entrapped absorbent has an effective surface area no greater than about 1% of the actual surface area of the so... | 04/03/1979 |
| 4141755 | Masonry construction member impregnated with a copolymer of hydroxy alkyl acrylate or methacrylate with long chain alkyl acrylate or methacrylate Water insoluble, hydrophilic copolymers of 50 to 98% of hydroxyalkyl acrylate or methacrylate wherein the alkyl group has 2 to 3 carbon atoms with 2 to 50% stearyl acrylate or methacrylate are prepared. They are particularly effective for sealing and coat... | 02/27/1979 |
| 4135302 | Endodontic therapeutic device and procedures A device and procedures for endodontic therapy. An elongated flexible tubular member having a plurality of axially directed orifices formed in the distal end thereof has the proximal end thereof adapted to be connected to a source of supply of liquid. The... | 01/23/1979 |
| 4121587 | Root canal delivery syringe An improved syringe is provided for root canal applications comprising a generally cylindrical or polygonal hollow barrel threaded internally at its distal end and at its proximal end, and a plunger which is substantially coextensive in length with and is... | 10/24/1978 |
| 4081402 | Hydrophilic absorbents Products are prepared of solid hydrogel matrixes having entrapped therein high-surface area sorbent materials, preferably activated carbon. The entrapped absorbent has an effective surface area no greater than about 1% of the actual surface area of the so... | 03/28/1978 |
| 4075007 | N-chloro-chloroacetamides as herbicides N-chloro chloroalkanamides or chloro hydrocarbyl substituted alkanamides of the formula ##STR1## where R1 is hydrogen or alkyl of 1 to 6 carbon atoms, R4 is alkylene or chloroalkylene of 1 to 5 carbon atoms, n is 0 or 1, R2... | 02/21/1978 |
| 4064086 | Thermoplastic hydrogels Thermoplastic hydrogels are prepared by making condensation polymers of spirolactones of the formula: ##STR1## with a difunctional compound capable of opening the lactone rings. The thermoplastic hydrogels can be cross-linked. In the formula the tota... | 12/20/1977 |
| 4060600 | Treating teeth A method of treating teeth in dentistry, for the prevention of calculus, removal of caries, and dissolving of plaque, comprises bringing into contact with the teeth an aqueous solution containing a hypochlorite of an alkali and/or alkaline earth metal, an... | 11/29/1977 |
| 4055663 | Halogenated acylamino acids as fungicides Compounds of the formula ##STR1## wherein Y is chlorinated alkyl of 1 to 6 carbon atoms; wherein R is Cn H2n or R2 Cn H2n-1 wherein n is an integer of 1 to 11 and R2 is aralkyl or carb... | 10/25/1977 |
| 4039501 | Plasticized hydrophilic polymers Plasticized solid, water-insoluble, water-swellable, hydrophilic polymers having the recurring unit ##STR1## wherein R is a divalent aliphatic hydrocarbon radical of 2 to 8 carbon atoms; where R' is hydrogen or alkyl of 1 to 4 carbon atoms; preferabl... | 08/02/1977 |
| 4038264 | Hema copolymers having high oxygen permeability Hydrophilic copolymers are prepared of compounds having the formulae: ##STR1## where R is hydrogen or methyl, R2 is alkylene of 2 to 3 carbon atoms, R1 is alkoxy of 1 to 6 carbon atoms, R3 is alkylene of 2 to 3 carbon... | 07/26/1977 |
| 4031110 | Method of preparing 3,3-Bis (chloromethyl) oxetane 3,3-Bis (chloromethyl) oxetane is prepared by a method which comprises reacting N,N-dimethyl formamide with thionyl chloride to produce Vilsmeier reagent, followed by the reaction of the Vilsmeier reagent with pentaerythritol to produce pentaerythritol mo... | 06/21/1977 |
| 4015008 | N,N-dichloro substituted aminocarboxylic acids as microbiocides N-chloro nitrogen-containing carboxylic acids have been found to be useful as microbiocides in topical treatment of the skin and mucous membranes.... | 03/29/1977 |
| 4012842 | Dental treatment method and apparatus In a method for removal of dental plaque and caries in dentistry, there is applied to the teeth a high velocity pulsating jet stream of liquid possibly subjected also to ultrasonic vibration. The jet stream is pulsated, preferably with pulsations having a... | 03/22/1977 |
| 4009684 | Water soluble polymers useful in the preparation of novel animal litter An animal litter is prepared comprising a loose substrate treated with a solid water soluble copolymer of (a) 5 - 35% of a hydroxyester of a 2-alkenoate having the formula ##STR1## wherein R is alkylene of 2 to 4 carbon atoms and R' is hydrogen or al... | 03/01/1977 |
| 4003991 | Ophthalmic formulation An ophthalmic "ointment" comprising water, a solid water-soluble polymer of controlled molecular weight, and a medicament or therapeutic agent such as pilocarpine in its pharmacologically acceptable salts.... | 01/18/1977 |
