Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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 |
| 7435307 | Fe-Ni based permalloy and method of producing the same and cast slab A Fe—Ni based permalloy comprises Ni: 30-85 wt %, C: not more than 0.015 wt %, Si: not more than 1.0 wt %, Nin: not more than 1.0 wt %, P: not more than 0.01 wt %, S: not more than 0.005 wt %, O: not more than 0.0060 wt %, Al: not more than 0.02 wt % and, if neces... | 10/14/2008 |
| 7156974 | Method of manufacturing titanium and titanium alloy products A method of manufacturing titanium or titanium alloy semi-finished or ready-to-use products is disclosed. The method includes forming shaped bodies of titanium oxide particles and positioning the shaped bodies is an electrolytic cell which includes: an anode, a cath... | 01/02/2007 |
| 7063752 | Grain refinement of alloys using magnetic field processing A method for refining the grain size of alloys which undergo ferromagnetic to paramagnetic phase transformation and an alloy produced therefrom. By subjecting the alloy to a timed application of a strong magnetic field, the temperature of phase boundaries can be shi... | 06/20/2006 |
| 6814818 | Heat treatment of titanium-alloy articles to limit alpha case formation A method for heat treating titanium-alloy articles in a vacuum furnace includes a step of first determining, for a first set of titanium articles in a first vacuum furnace and for a first set of heat treatment conditions, a minimum surface area of the first set of t... | 11/09/2004 |
| 6811624 | Method for production of dual phase sheet steel Dual phase steel sheet is made using a time/temperature cycle including a soak at about 1340-1425F and a hold at 850-920F, where the steel has the composition in weight percent, carbon: 0.02-0.20; aluminum: 0.010-0.150; titanium: 0.01 max; silicon: 0.5 max; phosphor... | 11/02/2004 |
| 6705601 | Self-compensating spiral spring for a mechanical balance-spiral spring oscillator This self-compensating spiral spring for a mechanical balance-spiral spring oscillator for a watch or clock movement or other precision instrument, made of an Nb—Hf paramagnetic alloy possessing a thermal coefficient of Young's modulus (TCE), such that it enables ... | 03/16/2004 |
| 5881026 | Self-compensating balance spring for a mechanical oscillator of a balance-spring/balance assembly of a watch movement and process for manufacturing this balance-spring A self-compensating spring for a balance-spring for a balance-spring/balance assembly of a mechanical oscillator of a horological movement or of any other precision instrument, made of a paramagnetic Nb--Zr alloy containing between 5% and 25% by weight of... | 03/09/1999 |
| 5868817 | Process for producing steel by converter The present invention provides a process for efficiently dephosphorizing, dephosphorizing and decarbonizing, or desulfurizing, dephosphorizing and decarbonizing a hot metal in a converter. The amount of flux to be charged and the amount of bottom-blown ga... | 02/09/1999 |
| 5496424 | Hydrogen absorbing alloy and process for preparing same A hydrogen absorbing alloy represented by the general formula R1-x Ax (Ni5-y By)z wherein R is Mm (misch metal) or La, A is at least one element selected from the group consisting of Ce, Nd, Pr, Sm an... | 03/05/1996 |
| 5188677 | Method of manufacturing a magnetic disk substrate A method of manufacturing a titanium alloy magnetic disk substrate comprising (a) cold-rolling an alloy plate at a rolling ratio of no less than 30%, the alloy plate comprising 0.5 wt. % to 1.0 wt. % of Mo and containing oxygen, nitrogen and carbon in amo... | 02/23/1993 |
| 5180551 | Gold alloys of exceptional yellow color and reversible hardness A unique hardenable gold based alloy, especially a 14 karat gold alloy containing gold, silver, copper, zinc, cobalt and an alternative alloy additionally containing iridium. The alloy has a fine grained structure, a lower hardness in the soft condition, ... | 01/19/1993 |
| 5169463 | Alloys containing gamma prime phase and particles and process for forming same A work-strengthenable alloy which includes a gamma prime phase gamma prime particles comprising the following elements in percent by weight: ______________________________________ molybdenum 6-16 chromium 13-25 iron ... | 12/08/1992 |
| 5158624 | Soft-magnetic nickel-iron-chromium alloy An alloy essentially consisting of 35-40% Ni, 5-14% Cr and balance Fe and unavoidable impurities has excellent alternating current magnetic characteristics and good direct current magnetic characteristics.... | 10/27/1992 |
| 4908069 | Alloys containing gamma prime phase and process for forming same A method of making a work-strengthenable alloy which includes a gamma prime phase which method comprises forming a melt comprising the following elements in percent by weight: ______________________________________ molybdenum 6-16 chr... | 03/13/1990 |
| 4717428 | Annealing of zirconium based articles by induction heating Processes for the rapid alpha annealing of zirconium based articles are described. These processes utilize induction heating to rapidly heat a worked zirconium based article to an elevated temperature after which it is then cooled. Time at the selected el... | 01/05/1988 |
| 4685978 | Heat treatments of controlled expansion alloy Controlled low expansion alloys containing nickel, titanium, columbium, silicon, etc., and optionally cobalt can be heat treated using relatively short periods of time. Aging treatments can be less than eight hours, for example, four hours.... | 08/11/1987 |
| 4622079 | Method for the dispersion of hard alpha defects in ingots of titanium or titanium alloy and ingots produced thereby A method consisting of a high temperature diffusion treatment, preferably preceded by a hot isostatic pressing treatment, by which the deleterious effects of hard alpha defects may be substantially reduced or eliminated from ingots of titanium or titanium... | 11/11/1986 |
| 4612062 | Process for producing a fine-grained workpiece from a nickel-based superalloy A fine-grained workpiece having improved mechanical properties is produced from a nickel-based superalloy by two-part forging, a blank being converted, in a first isothermal hot-forming step (curve b) above the solution-annealing temperature for the γ'-p... | 09/16/1986 |
| 4521259 | Nitrogen annealing of zirconium and zirconium alloys A method of continuously nitrogen annealing zirconium and zirconium alloys at temperatures at from 1000° F. to 1600° F. for from 1/2 minute to 10 minutes.... | 06/04/1985 |
| 4482398 | Method for refining microstructures of cast titanium articles The microstructure of titanium alloy castings is improved by a process which comprises beta-solution heat treating the cast article at or near the beta-transus temperature of the alloy, cooling the article to room temperature at a rate in excess of air co... | 11/13/1984 |
| 4465530 | Gas turbine nozzle having superior thermal fatigue resistance Disclosed in a gas turbine nozzle having a superior thermal fatigue resistance. The gas turbine nozzle is made of a cast alloy consisting essentially of 0.1 to 1 wt % carbon, 0.1 to 2 wt % silicon, 0.1 to 2 wt % manganese, 20 to 35 wt % chromium, 0.001 to... | 08/14/1984 |
| 4453985 | Process for the production of a fine-grained work piece as finished part from a heat resistant austenitic nickel based alloy Using a heat resistant austenitic nickel based alloy, independent of the grain size in the initial material, a fine-grained finished part is produced from an unworked part which was not specially cultivated for fine grain, in a single operational step, co... | 06/12/1984 |
| 4428779 | High-strength, high-conductivity copper alloys Cu-Ni-Sb alloys have been discovered having a two-phase or multiphase state at low levels of antimony, and alloys in such state have high strength, high ductility, and high electrical conductivity. Tensile strengths in the range of 80,000-160,000 psi have... | 01/31/1984 |
| 4421571 | Process for making high strength deep well casing and tubing having improved resistance to stress-corrosion cracking A process for manufacturing high strength deep well casing, tubing, and drill pipes, which have improved resistance to stress corrosion cracking is disclosed. The process comprises the steps of preparing an alloy composition which is: applying, after hot ... | 12/20/1983 |
| 4412872 | Process for manufacturing a component from a titanium alloy, as well as a component and the use thereof A process for manufacturing a component from a mechanically unstable ଲ-titanium alloy which exhibits 3 shape-related memory effects which all differ from one another: a one-way effect, a two-way effect (resembling a bi-metal), this effect being virt... | 11/01/1983 |
| 4401727 | Ferrous product having an alloy coating thereon of Al-Zn-Mg-Si Alloy, and method A coated ferrous article with improved properties, e.g., improved overall corrosion resistance and good appearance. The article has a ferrous substrate and a ductile, adherent, corrosion resistant alloy coating metallurgically bonded to the substrate. The... | 08/30/1983 |
| 4305762 | Copper base alloy and method for obtaining same The disclosure teaches a high strength, high conductivity copper base alloy and method for obtaining same. The composition consists essentially of defined amounts of magnesium, phosphorus and a transition element selected from the group consisting of iron... | 12/15/1981 |
| 4294631 | Surface corrosion inhibition of zirconium alloys by laser surface ଲ-quenching A laser beam is scanned over the surface of a structure comprising zirconium alloy in overlapping passes to form a barrier layer of corrosion resistant ଲ-quenched zirconium alloy at the treated surface.... | 10/13/1981 |
| 4233068 | Modified brass alloys with improved stress relaxation resistance An alloy system which exhibits improved resistance to stress relaxation at elevated temperatures utilizes additions of tin or silicon, or mixtures of each of these elements, along with magnesium or magnesium plus aluminum to a copper-zinc base to attain t... | 11/11/1980 |
| 4219372 | Homogenization of zirconium alloys A process for homogenizing zirconium alloys and minimizing metallurgical effects of certain alloy and impurity segregates, including tin rich segregates. The zirconium alloys are heated to high temperatures for sufficient time to cause the rich tin string... | 08/26/1980 |
| 4202688 | High conductivity high temperature copper alloy A high conductivity high temperature copper alloy containing mischmetal, phosphorus and magnesium with specific ratios among them. The alloy is free from internal copper oxides and may be annealed at elevated temperatures in hydrogen atmospheres without e... | 05/13/1980 |
| 4142918 | Method for making fine-grained Cu-Ni-Sn alloys Cu-Ni-Sn alloys are of commercial interest in applications which involve shaping by mechanical working of an alloy as well as in casting applications. Disclosed is a method which is particularly beneficial for casting and forging applications, i.e. applic... | 03/06/1979 |
| 4116686 | Copper base alloys possessing improved processability A copper base alloy is disclosed which exhibits improved resistance to crack propagation during hot processing as well as good mechanical properties. The alloy comprises from about 4.0 to about 11.0% tin, from about 0.01 to about 0.3% phosphorus, from abo... | 09/26/1978 |
| 4067753 | Process for the manufacture of shaped parts from multi-component silver-copper alloys A method is set forth for the production of shaped parts from a multi-component silver-copper alloy containing at least one metal from the group consisting of tin and indium and optionally zinc. The alloy is hot worked and then subsequently subjected to c... | 01/10/1978 |
| 4003765 | Heat treatment of cobalt base alloys Cobalt based alloy containing 5% to 30% Ni; 18% to 25% Cr; 5% to 17% of at least one of W, Ta and Mo; 0.10% to 0.30% C; 50 ppm to 200 ppm B; 0 to 0.3% Fe; 0 to 2% Mn; 0 to 1% HF; 0 to 1% La; 0 to 1% Y; 0.5% to 2% in total of Ti and/or Nb, the balance bein... | 01/18/1977 |
| 3972752 | Alloys having a nickel-iron-chromium base for structural hardening by thermal treatment Method of preparation of an alloy comprising the steps of preparing a nickel-iron-chromium based alloy, placing the alloy in solution at temperatures between 925°C and 1060°C, followed by a quick cooling, aging the alloy at a first level of temperature ... | 08/03/1976 |
