Bizarre Patents
A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.
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 |
| 4397142 | Coded threads and sheet material useful for making such coded threads Coded threads and sheet material for making such threads useful in counterfeit-inhibiting garments. The sheet material comprises transparent microspheres, a specularly reflective layer underlying the microspheres, and a polymeric layer underlying the spec... | 08/09/1983 |
| 4393901 | Low-permeability hollow spheres and pipe filled with the spheres for temporary weight reduction Pipe adapted to be installed underwater at increased ocean depths by practical pipe-laying procedures comprises a porous cement shell filled with hollow spheres that are slowly permeable to water under pressure. The cement shell is filled with a sufficien... | 07/19/1983 |
| 4391646 | Glass bubbles of increased collapse strength Glass bubbles of increased collapse strength are prepared. The bubbles have an average particle density of 0.4 or more and are made of glass that consists essentially of SiO2 (60-90 weight-percent), alkali metal oxide (2-20 weight-percent), B | 07/05/1983 |
| 4388359 | Embossed pavement-marking sheet material Pavement-marking sheet material having protuberances on its upper surface which carry partially exposed microspheres by which the protuberances are made retroreflective and which are separated by recessed areas in which microspheres are fully embedded and... | 06/14/1983 |
| 4377988 | Reflective animal collar and material for forming such a collar Reflective sheeting useful for application to a pesticide-impregnated animal collar, and animal collars made from the sheeting. The sheeting generally comprises a monolayer of transparent microspheres; specularly reflective material underlying the microsp... | 03/29/1983 |
| 4372997 | Heat- and flame-resistant sheet material Fire- and heat-resistant sheet material comprises fibrous webs adhered together with asphalt which is filled with inorganic particles, intumescable granules, and a catalyst which catalyzes charring of the asphalt.... | 02/08/1983 |
| 4367920 | Retroflective sheeting New methods for making "embedded-lens" retroreflective sheeting, and new forms of such sheeting, are provided. The new sheetings are retroreflective through an increased angular range, and also provide brighter overall retroreflectivity and other advantag... | 01/11/1983 |
| 4367919 | Durable glass elements Glass microspheres and other glass elements based on B2 O3, BaO, SiO2 and TiO2 have an improved combination of crushing strength, index of refraction, and, especially in some formulations, chemical resistance. T... | 01/11/1983 |
| 4349598 | High incidence angle retroreflective material Retroreflective film, sheeting or the like having an array of light-reflecting right triangle prisms between a transparent surface layer and a backing layer. The opposing triangular end faces of adjacent prisms are spaced apart to provide internal reflect... | 09/14/1982 |
| 4348312 | Ultra-high-index glass microspheres and products made therefrom with a fluoropolymer and an ester polymer blend Compositions comprising copolymers of methyl methacrylate and ethyl acrylate and of vinylidene fluoride and hexafluoropropylene may be blended to form transparent compositions of low refractive index, making them useful in retroreflective products as a la... | 09/07/1982 |
| 4323633 | UV-Absorbing compounds and photographic elements containing them It is desirable to protect color photographic dye images from ultraviolet radiation which tends to cause dyes to fade. It has been the practice in the art to add materials into or above the silver halide emulsions which will absorb ultraviolet radiation but al... | 04/06/1982 |
| 4323591 | Irradiation of polyacrylate films in air Polyacrylate materials having certain heterocyclic nuclei within the structure have been found to be readily and polymerizable by irradiation in air. Typically, polyacrylate materials are highly sensitive to the presence of oxygen and do not polymerize fu... | 04/06/1982 |
| 4312676 | Retro-reflective liquid coating composition A liquid coating composition that is useful to form retro-reflective marks that actuate photoscanner sensing devices and that comprises a liquid vehicle and retro-reflective elements uniformly dispersed in the vehicle. The vehicle includes a high proporti... | 01/26/1982 |
| 4288355 | Surgical cement composition A surgical cement comprised of a concentrated non-gelling aqueous solution of a polycarboxylic acid and an aqueous suspension of metal oxide powder which when mixed together form a plastic mass which is formable into the desired shape before it hardens. T... | 09/08/1981 |
| 4256828 | Photocopolymerizable compositions based on epoxy and hydroxyl-containing organic materials Photocopolymerizable compositions are described which contain epoxides, organic material with hydroxyl functionality, and a photosensitive aromatic sulfonium or iodonium salt of a halogen-containing complex ion. Coated substrates are also described.... | 03/17/1981 |
| 4256694 | Carbon monoxide monitoring system Colorimetric indicator material comprising alumina impregnated with permanganate ion and silver ion which changes color from purple to brown in the presence of carbon monoxide is disclosed. A personal monitor containing permanganate ion and silver ion imp... | 03/17/1981 |
| 4231951 | Complex salt photoinitiator A triarylsulfonium complex salt is described which has particular utility as a photoinitiator for the polymerization of epoxide monomers in thick films or coatings. Photopolymerizable compositions are also described.... | 11/04/1980 |
| 4231886 | Ester solutions of complex salts Compositions are provided comprising complex salts dissolved in liquid organic esters in amounts of at least 10% by weight. The compositions provide a concentrated liquid form of complex salt for use as photoinitiator in polymerization reactions.... | 11/04/1980 |
| 4218531 | Addition of ethylenically unsaturated materials to control odor in photopolymerizable epoxy compositions The use of certain organic materials having non-aromatic carbon-carbon unsaturation is described in connection with photopolymerizable compositions containing aromatic sulfonium complex salt photoinitiators in order to minimize or eliminate the odor of or... | 08/19/1980 |
| 4187103 | Treated photoconductive titanium dioxide sheet A photoconductive copy sheet suitable as an intermediate in an electrographic process, the copy sheet containing photoconductive titanium dioxide and decay retarder in the form of an organic acid or salt thereof. Preferably, the titanium dioxide is of a t... | 02/05/1980 |
| 4186108 | Liquid compositions containing triarylsulfonium complex salts and oxyethylene material Liquid compositions are described which comprise certain sulfonium complex salts dissolved in oxyethylene-containing organic material. The compositions are dilutable with, for example, epoxides to form photocopolymerizable compositions.... | 01/29/1980 |
| 4173476 | Complex salt photoinitiator A triarylsulfonium complex salt is described which has particular utility as a photoinitiator for the polymerization of epoxide monomers in thick films or coatings. Photopolymerizable compositions are also described.... | 11/06/1979 |
| 4161518 | Compositions and methods for inhibiting plaque formation A dentifrice composition is provided containing a quaternary ammonium organosiloxane having the formula ##STR1## wherein R1 is an alkoxy group having from 1 to 5 carbon atoms, R2 is an alkylene group having from 1 to 25 carbon a... | 07/17/1979 |
| 4150012 | Discernible dental sealant A composition and method adapted for discernibly filling and sealing pits and fissures in tooth surfaces is described. The novel compositions contain finely divided hydrophobic opaquing filler and hydrophobic suspending agent, in defined amounts, in a pol... | 04/17/1979 |
| 4110499 | Fired clay pillows and structures made therewith Unique fired clay pillows are described which are useful for a variety of purposes. They have particular utility in structural applications when they are first rendered impervious, mixed with a hardenable binder, and then cast into a mold or form of desir... | 08/29/1978 |
| 4090936 | Photohardenable compositions Photohardenable, liquid compositions are described which are particularly useful as plating and etching resists.... | 05/23/1978 |
| 4081077 | Compartmented package A compartmented package is described comprising a unitary body member having a cavity therein adapted to contain at least two co-reactive components separated into compartments by means of an elongated mixing tool. The top portion of the cavity is closed ... | 03/28/1978 |
