U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!

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Lawrence, Evan K.


Primary examiner statistics: 897 patents; average approval time: 732 days
Assistant examiner statistics: 73 patents; average approval time: 714 days

Patents as Assistant Examiner


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NumberTitleIssue Date
4156038Process for producing a finish-effect film having pores or structures that correspond with the printed area
A method for making a finish-effect film which possesses pores in a predetermined design pattern by printing an absorbent water-swellable supporting web in a predetermined design pattern with a substance that retards penetration of water, coating the web ...
05/22/1979
4150169Method for manufacturing an embossed vinyl surface covering having a clear photopolymerized coating
In a method for manufacturing an embossed thermoplastic surface covering wherein a 100% reactive photopolymerizable coating is applied to the embossed thermoplastic substrate, the improvement comprising prewetting the valleys of the embossed substrate wit...
04/17/1979
4148944Method for printing vinyl flooring with water based ink composition
A method for printing a decorative design on the surface of a vinyl material such as sheet vinyl flooring using a water based ink. The ink is a blend of acrylic and vinyl latexes and contains coalescing agent as well as surfactant and pigment....
04/10/1979
4142978Fabric treating compositions with modified phase properties
An article for softening fabrics in an automatic clothes dryer comprises a non-staining fabric softening mixture being substantially free of unneutralized fatty acids in releasable combination with a dispensing means. The softening mixture comprises a fab...
03/06/1979
4143179Method of manufacturing a keyboard
A method for manufacturing a keyboard which can be utilized in a keying structure is described. It consists of layering a flat fixed plate with a conductive paint, masking a preformed insulating rubber keyboard, laying the keyboard on the conductive paint...
03/06/1979
4143209Process for making zinc coated steel wire and product made thereby
An improvement in a process for making a rubber adherable wire, wherein a steel wire is plated with brass and then drawn through dies to reach the desired diameter, comprises coating the brass plated wire with 5×10-5 to 50×10-5 mil...
03/06/1979
4139942Process for producing corrosion resistant carbon steel razor blades and products made thereby
A process for producing long-lasting corrosion resistant carbon steel razor blades and the products made thereby. The process comprises first coating the cutting edges of the blades with chromium; and then immersing the blades in an electroless coating ba...
02/20/1979
4140820Method of maintaining edge strength of a piece of glass
A method of maintaining edge strength of a piece of glass i.e. preventing unintentional damage such as chips and/or scratches to the edges of the piece of glass during handling, processing and/or shipping is disclosed. A sheet of glass having dimensions g...
02/20/1979
4140552Method of treating aluminum-killed and low alloy steel strip and sheet surfaces, in sulfur-bearing atmosphere, for metallic coating
A method of surface treatment of aluminum-killed and low alloy steel strip and sheet for fluxless hot dip metallic coating which comprises heating the steel in a furnace atmosphere containing the hot gaseous combustion products of air with a sulfur bearin...
02/20/1979
4137685Sulfur-coated bamboo reinforcement member for concrete articles
A reinforcement member for concrete bodies includes a bamboo rod having a roughened surface consisting of the bamboo cortex, and a substantially continuous coating of crystallized sulfur adhering to the roughened surface to prevent moisture absorption and...
02/06/1979
4137046Transparent cellulosic paper and method for making the same
A transparent cellulosic paper is produced by coating or impregnating a cellulosic paper with an organic solvent solution containing a compound having a weight-average molecular weight of 200 to 2,000 and having at least two isocyanate groups in a molecul...
01/30/1979
4136147Method of applying fire-proofing material to elongate structural member
The method of applying a coating of a desired uniform thickness of a spreadable material, such as a cementitious fire-proofing material, to an elongate structural member (e.g., an I-beam) comprises applying a plurality of preformed spacers to the beam, th...
01/23/1979
4132819Method of shaping an organic polymer insoluble in a polar solvent
A method of shaping an organic polymer insoluble in a polar solvent comprises reacting an insoluble organic polymer containing at least one Lewis acidic electron attracting group or Lewis basic group with a sufficient amount of a lower alkylene oxide to a...
01/02/1979
4129669Method of applying decorative designs to surfaces
A method of applying decorative designs through a stencil to surfaces comprises applying an adhesive stencil to a surface and painting the stencil to form a decorative design on the surface. The stencil may be made from a laminated sheet consisting of two...
12/12/1978
4125637Process for embedding hard particles in a bearing surface
In a process for forming an extremely hard-wearing rubber or bearing surface on a metal machine part, particles of hard grit, such as carbide grit, are deliberately formed into the surface using a resiliently-loaded tool, so that the surface becomes perma...
11/14/1978
4123292Method of treating steel strip and sheet surfaces for metallic coating
A method of preparing the surfaces of steel strip and sheet stock for fluxless hot dip metallic coating, comprising the steps of passing the stock through a first heating section under conditions which form a visible iron oxide layer on the stock surfaces...
10/31/1978
4123572Cutting sheet material having tacky layer thereon
A continuous method of manufacturing a plurality of sheet material blanks each having a surface uniformly coated with a tacky layer comprises passing a long length of the sheet material through a first station in which tapes are applied to a surface of th...
10/31/1978
4123291Method of treating steel strip and sheet surfaces, in sulfur-bearing atmosphere, for metallic coating
A method of preparing the surfaces of steel strip and sheet stock for fluxless hot dip coating with molten metal by passing the stock through a first heating zone containing the hot gaseous products of combustion of a sulfur-bearing gaseous fuel with air,...
10/31/1978
4120995Process for bonding a durable low surface energy coating
This invention is concerned with a process for bonding a durable low surface energy polymeric coating to a metal or oxide surface. The metal or oxide surface is first treated with an alkali, thereby maximizing the hydroxide ion concentration on the surfac...
10/17/1978
4118525Article and method for fabric softening and static control
A laundry article providing fabric softening and static control benefits in a laundry dryer consists essentially of a water-insoluble substrate carrying an intimate mixture of a quaternary ammonium fabric softening and antistatic compound and a dispersion...
10/03/1978
4110509Process for imparting flame resistance to cellulosic textile materials and cellulosic materials obtained thereby
A process and product obtained thereby are disclosed wherein a cellulosic textile material is impregnated with an aqueous solution of a condensation product of tetrakis(hydroxymethyl)phosphonium sulfate and urea, partially dried, impregnated with a thicke...
08/29/1978
4105811Method of protectively coating metallic aluminum containing substrate
A method is disclosed for protecting aluminum and aluminum alloys by the chemical bonding of a polymerized coating to the aluminum oxide on the aluminum surface. The protective coating is graft polymerized from a solution onto the aluminum in the presence...
08/08/1978
4098930Method for producing microporous separator for electrochemical cell
A method for producing a microporous separator for an electrochemical cell comprises dissolving a copolymer of acrylonitrile into N,N-dimethylformamide, impregnating an acid- and/or alkali-resistant fibrous web with the resultant solution, and thereafter ...
07/04/1978
4095404Method of manufacturing a high-strength, polyurethane-impregnated polyamide cable
A high-strength, low weight, electromechanical cable is manufactured from aromatic polyamide multifilament yarns impregnated with a hydrolytically stable polyurethane resin to form a protective coating. The coating provides load adjustment from fiber to f...
06/20/1978
4096299Method of making decorative candles
A decorative multicolored candle is produced by applying, to the side surface of a candle core, a removable solid member having a melting temperature higher than that of candle wax. The surface of the core and side member are coated successively with a pl...
06/20/1978
4096294Process for preparing waterless printing masters comprising copolymer of siloxane and crystallized thermoplastic blocks
A process for preparing a waterless printing master having a minimum background ink reflection density comprises coating a master substrate with an ink releasing block copolymer comprising elastomeric ink releasing siloxane blocks and isothermally crystal...
06/20/1978
4085239Process for manufacturing a differentially expanded resinous cellular sheet
A process for the manufacture of a differentially expanded sheet material comprises applying an organic solvent to the surface of an expandable thermoplastic sheet containing a blowing agent and allowing the treated sheet to at least partially dry before ...
04/18/1978
4075365Turquoise-plastic-composite
A turquoise is impregnated with a monomeric diester having two spaced apart polymerizable monoolefinic groups, said diester having a plurality of supplemental hydrophillic groups and a volatility corresponding to a boiling point within a range from about ...
02/21/1978
4073969Method of fabricating a photoconductive detector of increased responsivity
A method of fabricating a photoconductive detector of increased responsivity, such as an infrared detector, from a slab of N-type, intrinsic bulk semiconductor material comprises shielding part of the detector active area between the positive and negative...
02/14/1978
4073981Method of selectively depositing metal on a surface
A method is disclosed for selectively depositing a metal on a surface of a substrate capable of retaining thereon a colloidal activating metal for electroless metal deposition. The method comprises coating a portion of the surface with a copolymer of male...
02/14/1978
4066387Method of improving the sorption capacity of polymers
A method of improving the sorption capacity of a substantially hydrophobic, thermoplastic polymer, which comprises introducing into the polymer a halogen by contacting the polymer with a solution containing the halogen under conditions which avoid chemica...
01/03/1978
4066805Method of achieving a two-toned fiberboard product
Mineral or wood fiberboard is provided with a disrupted or embossed decorative surface, painted overall with a paint containing yellow pigment grade ferric oxide pigment, and the high areas contacted with a heated surface at a temperature such that the fe...
01/03/1978
4065339Process for producing fibre reinforced plastic tubes with flanges
A process for producing fibre-reinforced plastic tubes outfitted with flanges, wherein a tube is continuously knit and coated with a duroplastic material in free-flowing form, and the duroplastic material is subsequently hardened. The application of durop...
12/27/1977
4056655Process for treating porous materials and products obtained
A method for processing porous materials with at least one water-insoluble polymerizable compound and the products obtained, said method comprising the following steps in successive order: impregnating a porous material, especially one consisting essentia...
11/01/1977
4054634Production of polyester tire yarn
In a process for producing polyethylene terephthalate yarn, particularly for tire cords, wherein a liquid finish is applied to the yarn, said process involving spinning and drawing steps, the improvement comprising: (a) first applying to the yarn prior to...
10/18/1977
4053350Methods of defining regions of crystalline material of the group III-V compounds
A thin coating of carbon is used as a mask to define regions of a crystalline material of the group III-V compounds. A carbon mask is coated on portions of a surface of a substrate and the masked substrate contacted with the group III-V material to deposi...
10/11/1977
4053546Method of making a leather-like sheet material by coagulating two polymers
Method of making a leather-like sheet material having a low bounce impact elasticity, which comprises: (a) mixing (i) a solvent solution of a polymer (A) consisting mainly of an elastomer and (ii) a dispersion in a liquid of a polymer (B) consisting mainl...
10/11/1977
4052520Process for coating a synthetic polymer sheet material with a durable abrasion-resistant vitreous composition
There is disclosed a process for improving the adhesion of an evaporable glass coating on a synthetic polymer sheet material by the application of a base vitreous coating of a mixture of silicon dioxide and silicon monoxide by evaporating silicon monoxide...
10/04/1977
4051278Method for reducing mottle in coating a support with a liquid coating composition
In coating a support, such as a flexible web of synthetic organic polymer, with a coating composition comprising a film-forming material in an evaporable liquid vehicle, at least two of (1) the temperature of the atmosphere in the coating zone, (2) the te...
09/27/1977
4051275Embedding and compacting particles in porous surfaces
The process described herein involves a method of compacting and increasing the amount of particles, such as polytetrafluoroethylene, etc., deposited in fissures in a surface which involves heating the surface to expand the size of the fissures or pores i...
09/27/1977
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