...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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 |
| 5955289 | Assays for nongenotoxic, chemical carcinogens In vivo and in vitro assays for the detection and quantification of substances, which are carcinogenic, but not genotoxic or mutagenic, by measuring a correlative change in cyclin dependent kinases (CDK).... | 09/21/1999 |
| 5679511 | CDNA clones for a regulatory protein in the melanin-production pathway The present invention started when a λgt11 cDNA library of normal human melanocytes was screened with antibodies directed against purified hamster tyrosinase. Two important cDNA clones were isolated: cDNA λmel 34 and λmel 17-1. It is concluded that λm... | 10/21/1997 |
| 5666422 | Remote speaker for surround-sound applications A surround-sound system for use with conventional TV sets, using a wireless remote bipolar rear speaker (or two conventional speakers fed out of phase) for the surround (difference) channels. The use of the rear speaker(s) and the mono (left plus right) f... | 09/09/1997 |
| 5664360 | Game call holster A holster for game calls which can be fastened around the stock of a gun or of a bow. The holster has an elongated body made of flexible material, with a plurality of pockets formed on one side. The pockets are preferably formed so as to open toward the c... | 09/09/1997 |
| 5634419 | Front-drive boat A watercraft having its propulsion machinery near the bow. The hull of the craft has a single, tapered bow section, with a drive pod under the center of the bow. The bow section is tapered up into the hull aft of the middle of the craft, while the sides o... | 06/03/1997 |
| 5631987 | Low cost, mode-field matched, high performance laser transmitter optical subassembly A new type of transmitter optical subassembly (TOSA) especially suitable for fiber optic communication. The TOSA has a light source such as a laser diode, preferably of the surface-emitting type, with an inherent mode-field diameter matched without a lens... | 05/20/1997 |
| 5613334 | Laminated composite reinforcing bar and method of manufacture The invention presents a non-metallic laminated composite reinforcing rod for use in reinforced or prestressed concrete. The rod is made by creating a sheet of core material comprising a number of layers of "pre-preg" material. Ribs are formed on top of t... | 03/25/1997 |
| 5610600 | Operation verification system and method for navigational instruments An instrument verification system which causes the instrument needles to "bob" periodically--a sharp momentary deflection from center. If desired, the flags can also be "dipped" at the same time, verifying their operation as well. The pilot can easily dis... | 03/11/1997 |
| 5607736 | Elastic binding device with rubber tubing core An elastic binding devise consisting of a core of one or more latex rubber tubes covered with a woven jacket that can be elongated and contracted with the core.... | 03/04/1997 |
| 5593669 | Stable pre-occluded virus particle A method of infecting insects is disclosed; the method utilizes a form of a baculovirus which is highly efficient at establishing infection and is normally destined to become occluded within the polyhedrin or granulin--Pre-occluded Virus (POV). Specifical... | 01/14/1997 |
| 5588695 | Foldable beach chair A foldable chair is disclosed herein. The chair is made from a plurality of back, seat and intermediate members. The back members are joined along the top. The seat members are joined along the front. The other end of the back and seat members are joined ... | 12/31/1996 |
| 5583489 | Fabric security label A security label is attached to a fabric material for producing a signal when passed through a magnetic sensing field to produce a signal as an anti theft device for retail stores. The security label including a security device, such as a metallic strip, ... | 12/10/1996 |
| 5577537 | Adaptive holder, extension handle and toothbrush guide for a toothpaste dispenser A toothbrush holder system for positioning a toothbrush in proximity to the dispenser including a toothbrush holder base is secured in the adaptive holder along with the dispenser. The toothbrush is supported by support base and held in proper position by... | 11/26/1996 |
| 5572434 | Method for simulating mold filling of semi-solid material An efficient numerical procedure for the simulation of Newtonian fluids with non-negligible inertial effect which satisfies the Navier-Stokes equations and the energy equation. The method simulates the molding-filling process of incompressible viscous liq... | 11/05/1996 |
| 5570789 | Electrostatic sieving apparatus An electrostatic sieve having a circular solid electrode, preferably with sawtooth contours arranged on its lower side concentrically around a center hole. The solid electrode is supported by insulating brackets around its perimeter. The brackets are atta... | 11/05/1996 |
| 5560491 | Rescue alert kit A rescue alert kit (10) is provided herein. The kit includes an envelope, preferably a transparent envelope (20), which includes a reclosable opening (22). A high decibel whistle (27) is secured thereto. The envelope includes elements (23) which enables t... | 10/01/1996 |
| 5551642 | Electrostatic dispersing apparatus This invention utilizes the oscillation which is produced in a powder which is acted upon by an electrostatic field. The disperser accomplishes its task by electrically charging the powder in a high voltage DC filed or by contact with a charging electrode... | 09/03/1996 |
| 5532777 | Single lens apparatus for three-dimensional imaging having focus-related convergence compensation The invention comprises an adapter having a set of four mirrors in two pairs located in front of a camera lens. The outer two mirrors face generally outward along the optical axis of the lens and the inner two mirrors face generally inward into the lens. ... | 07/02/1996 |
| 5525222 | Water filtration system for control of the zebra mussel Disclosed herein are improvements to a water filtration system on a water intake line that prevent the infestation of Zebra Mussels in the water system. The water filtration system filters any water entering the water intake line through a filter having a... | 06/11/1996 |
| 5518082 | Versatile and stable five-legged sawhorse A new kind of saw horse comprising two major assemblies that separate into two flat pieces for easy storage and handling. Each assembly has two outside legs which meet an upper beam at a slight angle to the vertical. A vertical center support leg on one o... | 05/21/1996 |
| 5518051 | Adaptive holder, extension handle and toothbrush guide for a toothpaste dispenser An adaptive holder for a pump-style dispenser including a holder base and at least two converging side rails slanted from top to bottom and connected to the holder base. The dispenser base slides between and under the top of the converging side rails unti... | 05/21/1996 |
| 5516040 | Two way mailing envelopes The present invention includes a two way envelope that has a front panel, a rear panel, side flaps and a first mailing flap that seals the envelope during the first mailing like any other normal envelope. In addition to these standard features, the envelo... | 05/14/1996 |
| 5515584 | Wire connection system and method of assembly The present invention reaches a wire connection system that includes a wire and two tubes. The wire has one end that is threaded and fits into one of the tubes that is also threaded. The tubes are connected and oriented between 45° and 135° with respect... | 05/14/1996 |
| 5501541 | Flexible coupling device A flexible coupling device including a flexible metal rod or wire within a flexible tube which can be removably secured through the aligned bores of the pieces. The pieces are held in a fixed longitudinal relationship using the axial tension created by th... | 03/26/1996 |
| 5501266 | Method and apparatus for injection molding of semi-solid metals A new method and apparatus for the injection molding of semi-solid materials (SSM). In this process (called Rheomolding), a superheated liquid metal is cooled into the semi-solid state in the barrel of a special vertical injection-molding machine, with th... | 03/26/1996 |
| 5495999 | Retractable canard wing surfaces for airplanes A canard wing surface for aircraft, especially supersonic aircraft, which can be lowered and retracted flush into the fuselage of the aircraft when no longer needed. The canard is hinged to an extendible platform at or near its upper edge, so that a raisi... | 03/05/1996 |
| 5493107 | Shelf price label and product placement verification method and apparatus A price verification method for retail stores using shelf pricing, and apparatus therefor, in which the shelf labels are provided with an extended bar code having the item number and price of the item. A remote unit scans the item number and price, and us... | 02/20/1996 |
| 5484061 | Electrostatic sieving apparatus An apparatus for classifying particles by size comprising: a source of direct potential having first and second terminals, a sieve electrode connected to the first terminal, a solid electrode connected to the second terminal. Particles are fed to a transf... | 01/16/1996 |
| 5472230 | Portable vehicular air bag device An anti-collision device in the form of a portable air bag which may be attached to the dashboard of any car. The air bag may be easily moved from car to car or left attached in a single car, adding the passenger side protection which was omitted by the m... | 12/05/1995 |
| 5447349 | Auxiliary handle for shovels An auxiliary handle for shovels or the like having a shaft with an adjustable length, a clamp for attachment to the shaft of a conventional shovel near the blade, and a swivel linkage connecting the shaft to the clamp, which allows full swiveling of the a... | 09/05/1995 |
| 5433434 | Baseball pitching target A pitching, throwing or kicking training device having a support frame, a strike zone frame which is fully adjustable in height and positionable within the support frame, and a catcher target behind the strike zone frame which is adjustable in height and ... | 07/18/1995 |
| 5423361 | Debarker bit with fiber cutter A bit with a fiber cutter for a rosser head debarking machine. The bit has a base for mounting the bit onto the rosser head. The striking edge of the bit is connected to the base and comes into contact with bark and removes the bark as the rosser head spi... | 06/13/1995 |
| 5386473 | Passive surround sound circuit A passive circuit for decoding surround-sound signals using a transformer having center-tapped primary and secondary windings. The line level left and right signals are introduced into the primary winding, and the center tap of the primary supplies a left... | 01/31/1995 |
| 5383495 | Stainless steel security cap for fire hydrants A security hydrant cap having a domed body adapted to be removed only with a specialized tool, and a slip ring surrounding substantially all of the body and mounted thereto so as to be free to rotate about the body. The slip ring and, preferably, the body... | 01/24/1995 |
| 5382779 | Shelf price label verification apparatus and method A price verification method for retail stores using shelf pricing, and apparatus therefor, in which the shelf labels are provided with an extended bar code having the item number and price of the item. A remote unit scans the item number and price, and us... | 01/17/1995 |
| 5375514 | Adjustable height table support mechanism A mechanism for dual-height tables, counters, or the like, in which the top lifts and pivots upward and outward on pairs of links attached to the top and to link housings attached to the table or counter base. Each pair of links comprises a pivot link and... | 12/27/1994 |
| 5361871 | Product information system for shoppers The present invention teaches apparatus, method and use for a portable shopper product information remote unit. A plurality of remote units are provided to shoppers within a retail establishment which uses bar code scanners at a cashier's counter to recor... | 11/08/1994 |
| 5351643 | High density rearing system for larvae Method and apparatus for rearing insects is disclosed. Information concerning the physical and dietary needs of the insect as well as behavioral characteristics are utilized to maximize the number of larvae reared per unit surface area of diet and per uni... | 10/04/1994 |
| 5349535 | Battery condition monitoring and recording system for electric vehicles A device for accumulating information about storage batteries, especially useful for electric vehicles, in which a microcomputer having memory and associated sensors is built into each battery pack. The device accumulates data about the usage and conditio... | 09/20/1994 |
| 5348877 | Method of adapting anchorage-dependent cell lines to suspension conditions Normally anchorage-dependent insect cell lines are adapted to replicate under suspension conditions by addition of heparin to the culture medium and selection for resulting suspension-tolerant cells.... | 09/20/1994 |