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| Number | Title | Issue Date |
| 7550413 | Fluid loss control agents for viscoelastic surfactant fluids Alkaline earth metal compounds may be fluid loss control agents for viscoelastic surfactant (VES) fluids used for well completion or stimulation in hydrocarbon recovery operations. The VES fluid may further include proppant or gravel, if it is intended for use as a ... | 06/23/2009 |
| 5860190 | Expanded implement handle grip An expanded implement handle grip for placing over an implement handle of a spoon, fork, knife, toothbrush, hand tool, or the like has been devised which has improved concave features within the hollow, interior space thereof. These concave features, whic... | 01/19/1999 |
| 5753765 | Polymerizable oligo- and/or polyalkenoic acids Polymerizable oligo- and/or polyalkenoic acids are disclosed which are block polymers of different polyalkenoic acids or their derivatives and/or conjugated dienes. These oligo-/polyalkenoic acids are characterized in that they have at least one sequence ... | 05/19/1998 |
| 5681916 | Process for producing urea-modified, highly reactive phenolic resins useful as bonding agents for center-layer particles in the manufacture of particleboard Urea-modified, highly reactive phenolic resins useful as center-layer bonding agents in the manufacture of particleboard are provided by condensing phenol and formaldehyde until shortly before gelation takes place such that, after addition of urea, relati... | 10/28/1997 |
| 5663174 | Aromatic sulfonamide derivatives, their use as enzyme inhibitors and pharmaceutical compositions containing them Aromatic sulfonamide derivatives, particularly benzenesulfonamide, 4-fluorobenzenesulfonamide, 5-chloro-1-naphthalenesulfonamide and 5-isoquinolinesulfonamide derivatives are provided that inhibit Ca2+ -dependent enzymes and proteins such as Ph... | 09/02/1997 |
| 5629277 | Paint removing composition A composition for removing paint, particularly graffiti, is described which contains an alkylene carbonate, which may be propylene carbonate, butylene carbonate or mixtures thereof; propylene glycol as a hydrotrope, and a polypropylene glycol having a mol... | 05/13/1997 |
| 5588390 | Universal cavitation plate system A universal cavitation plate system for providing an after-market cavitation plate on the lower unit of virtually all boat motors having lower units and propellers. Each universal cavitation plate assembly has a cavitation plate with a longitudinal slot f... | 12/31/1996 |
| 5474714 | Non-polluting shock absorber and level controller fluids The present invention relates to hydraulic fluids which are particularly intended for shock absorption and level controlling applications in vehicles. Hydraulic fluids are provided which substantially consist of esterification products of monosaturated fa... | 12/12/1995 |
| 5402111 | Simplified fluid flow detector The invention detects the presence of a liquid or liquid flow, and it is used to control pumping of a well when the quantity of liquid being discharged by the pump per stroke is much less than the volumetric displacement of the pump. A fluid flow detector... | 03/28/1995 |
| 5339532 | Fish length measuring device A fish measuring device is described which has a fish support surface with a length, width and first and second ends opposite one another. A stop at the first end prevents movement of a fish lengthwise beyond the first end and at least two fish restrainin... | 08/23/1994 |
| 5189877 | Exhaust manifold air injector An air injection device for attachment to the exhaust manifold of an internal combustion engine is described. A one-way or check valve permits air to be drawn into the air injector to the exhaust manifold when the pressure inside is less than atmospheric ... | 03/02/1993 |
| 5157056 | High resiliency polyurethane foams with improved static fatigue properties A novel high resiliency (HR) polyurethane resin foam composition is provided which contains phosphorus compounds to improve the static fatigue properties thereof. An unusual benefit of using certain phosphorus compounds in HR foams is that improved compre... | 10/20/1992 |
| 5143023 | Animal litter with chemically bound chemical indicators A litter for the accumulation of animal urine, such as a domestic cat litter, having at least one visual indicator chemically bound to the litter base material, and a method for making such litter have been discovered. The litter having the chemical indic... | 09/01/1992 |
| 5124368 | Pour-in-place flexible polyurethane foam articles It has been discovered that a particular polyurethane formulation may be used to prepare "pour-in-place" (PIP) polyurethane foam articles where the formulation is injected into a mold bearing an exterior covering such as a fabric without the foaming liqui... | 06/23/1992 |
| 5027472 | Repositionable toilet seat handle assembly A toilet seat handle assembly which may be readily and easily repositioned on toilet seats of a large range of widths without tools is described. The assembly has two facing clamps spanned by a bolt. The bolt threads into one of the clamps, but passes thr... | 07/02/1991 |
| 5020160 | Protective disposable hand covering A protective, disposable hand covering or mitt is provided having a tear line along at least a portion of the body thereof to provide controlled tearing and destruction of the glove to facilitate its removal. A mechanism such as a textured area, tab, hole... | 06/04/1991 |
| 4969991 | Water purifying and dispensing system A vending or dispensing system for providing purified water in response to a customer request is described. The water dispensing system has a water reservoir or tank containing first stage purified water and is provided with a subsystem for circulating wa... | 11/13/1990 |
| 4968724 | Hydrated salt systems for controlled release of water in polyurethane foams Novel polyurethane resin foam compositions are provided which are only water-blown and require no halocarbon blowing agents, yet suffer no degradation in physical properties. The formulations include a hydrated salt containing at least two hydrated salts ... | 11/06/1990 |
| 4896651 | Portable, collapsible cooking grill A portable, collapsible cooking grill assembly for use at temporary camp sites has an elongated spud support which is driven into the ground by means of a driving tool having an impact head at its upper end. The impact head absorbs the force of the blows ... | 01/30/1990 |
| 4865211 | Collapsible article A tubular article, such as a plastic bottle, of optionally stepped cross-sections, with one section next to one of the steps incorporating near vertical tucks permits collapsing of the article. Under an axial force, the bottle or article will collapse in ... | 09/12/1989 |
| 4855330 | High styrene content stable polymer polyols using epoxy resin-modified polyols as base polyols Low viscosity polymer polyols having high styrene/acrylonitrile ratios and good stability may be achieved by the use of epoxy resin-modified polyols as the base polyols. The styrene/acrylo-nitrile ratio may be as high as 95/5 and even 100/0 in the polymer... | 08/08/1989 |
| 4820810 | Urea catalyst for preparation of sucrose polyols useful for rigid polyurethane foams Catalytic quantities of urea are used in the alkoxylation of aqueous sucrose to prepare low color polyols useful in rigid polyurethane foams.... | 04/11/1989 |
| 4765033 | Quick-release radial clamp A quick-release radial clamp for fitting over and clamping a hose onto a rigid fitting. The clamp has a split ring with an inner and outer surface. The split in the ring extends in the axial direction of the ring and forms two abutting ends. A stretched e... | 08/23/1988 |
| 4763181 | High density non-charge-sensing DRAM cell A non-charge-sensing high density dynamic random access memory (DRAM) cell using a trench capacitor as a vertical FET and two active field effect transistors (FETs). A particular bit line is shared by the cells on either side of it; the bit line on one si... | 08/09/1988 |
| 4761385 | Forming a trench capacitor A trench capacitor having increased capacitance. By means of the oxidation enhanced diffusion (OED) effect, locally outdiffused regions in the doped substrate of a semiconductor material may be formed. Thus, greater capacitance can be achieved for a trenc... | 08/02/1988 |
| 4760034 | Method of forming edge-sealed multi-layer structure while protecting adjacent region by screen oxide layer A process for forming a DRAM cell having a capacitor adjacent a field effect transistor (FET), wherein the FET fabrication area is protected from adverse effects of the capacitor formation. The process is misalignment tolerant and provides FETs with appre... | 07/26/1988 |
| 4756272 | Multiple gas injection apparatus for LPCVD equipment A quick-release multiple gas injection pipe connector fitting for removable attachment to a gas reaction chamber having a plurality of gas injection passages. The fitting permits a number of gas inlet lines to be removed from or attached to a reaction cha... | 07/12/1988 |
| 4752871 | Single-chip microcomputer having a program register for controlling two EEPROM arrays A single-chip microcomputer comprises at least two separate and independent electrically erasable programmable read only memories (EEPROMs) on-board which may be independently programmed, erased and read. Each part of the split EEPROM has its own data bus... | 06/21/1988 |
| 4745086 | Removable sidewall spacer for lightly doped drain formation using one mask level and differential oxidation A method of using removable sidewall spacers to minimize the need for mask levels in forming lightly doped drains (LDDs) in the formation of CMOS integrated circuits. Aluminum or chemical vapor deposition (CVD) metals such as tungsten are suitable materia... | 05/17/1988 |
| 4745079 | Method for fabricating MOS transistors having gates with different work functions A method for fabricating an insulated gate field effect transistor (IGFET) having a semiconductor gate with a first portion and a second portion where the portions are of two different conductivity types. Typically, a central portion of the gate, such as ... | 05/17/1988 |
| 4742480 | Cycle counter/shifter for division A data processor for performing a division operation requiring shifting and the counting of the number of shifts, having no dedicated counters therefor. An additional shift left path from the temporary register of the previous bit to the next bit address ... | 05/03/1988 |
| 4732785 | Edge bead removal process for spin on films A process for removing the edge bead of films that are spun onto a planar substrate, which edge bead collects at the edge of the substrate. In processes such as the manufacture of integrated circuits, the edge bead of brittle substances such as glass, SiO... | 03/22/1988 |
| 4729815 | Multiple step trench etching process A process having three steps to etch a vertical trench with rounded top corners and rounded bottom corners. The first step involves anisotropically etching a vertical trench through an opening in a masking layer to approximately 85 to 90% of the final tre... | 03/08/1988 |
| 4729816 | Isolation formation process with active area protection An isolation formation process that minimizes bird's beak encroachment and preserves gate oxide integrity in the active region. Future active areas are protected by a structure having a central protective material layer, such as a thermal oxide, surrounde... | 03/08/1988 |
| 4728619 | Field implant process for CMOS using germanium A complementary metal-oxide-semiconductor (CMOS) isolation structure where the field isolation structure between the adjacent areas of different conductivity types has a channel stop doped with boron or phosphorus affected by germanium. The dual use of ge... | 03/01/1988 |
| 4722909 | Removable sidewall spacer for lightly doped drain formation using two mask levels A method of using removable sidewall spacers to minimize the need for mask levels in forming lightly doped drains (LDDS) in the formation of CMOS integrated circuits. Aluminum or chemical vapor deposition (CVD) metals such as tungsten are suitable materia... | 02/02/1988 |
| 4717445 | Etch bias monitoring technique A method for determining the etch bias of a particular semiconductor device feature layer material in a given etch process employing a hard mask reference material that changes very little or not at all during the etch under examination, and using a cross... | 01/05/1988 |
| 4714519 | Method for fabricating MOS transistors having gates with different work functions A process for forming an insulated gate field effect transistor (IGFET) having a semiconductor gate with a central portion and end portions on either side thereof where the portions are of two different conductivity types. Typically, a central portion of ... | 12/22/1987 |
| 4704367 | Suppression of hillock growth through multiple thermal cycles by argon implantation A technique for suppressing hillock growth in metal films on integrated circuits through multiple thermal cycles by argon implantation. Although it was known that ion implantation of many species such as arsenic suppressed the growth of hillocks in metal ... | 11/03/1987 |
| 4701775 | Buried n- channel implant for NMOS transistors A deep, buried n- channel blanket implant beneath both n- channel and p-channel devices in MOS integrated circuits, whether complementary MOS (CMOS) or not. It is known to use deep, lightly-doped n- channel implant to impr... | 10/20/1987 |
