Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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 |
| 6491769 | Ni-Co-Cr high temperature strength and corrosion resistant alloy A high strength, corrosion resistant Cr--Co--Ni base alloy for long-life service at 530° C. to 820° C. containing in % by weight about 23.5-25.5% Cr, 15.0-22.0% Co, 0.2-2.0% Al, 0.5-2.5% Ti, 0.5-2.5% Nb, up to 2.0% Mo, up to 1.0% Mn, 0.3-1.0% Si, up to ... | 12/10/2002 |
| 6315846 | Heat treatment for nickel-base alloys A heat treatment for hot or cold worked 725 corrosion resistant Ni-base alloys to increase the room temperature yield strength of the material to above about 140 ksi (965 MPa). The material is useful for oil patch and gas turbine applications. The process... | 11/13/2001 |
| 6287398 | High strength alloy tailored for high temperature mixed-oxidant environments A high strength nickel-base alloy consisting essentially of, by weight percent, 50 to 60 nickel, 19 to 23 chromium, 18 to 22 iron, 3 to 4.4 aluminum, 0 to 0.4 titanium, 0.05 to 0.5 carbon, 0 to 0.1 cerium, 0 to 0.3 yttrium, 0.002 to 0.4 total cerium plus ... | 09/11/2001 |
| 6258317 | Advanced ultra-supercritical boiler tubing alloy An ultra supercritical boiler tubing alloy characterized by a microstructure stabilized and strengthened for 375 bar/700° C. steam, in weight percent, service and alloyed to resist coal ash/flue gas corrosion for 200,000 hours consisting of 10 to 24 coba... | 07/10/2001 |
| 6242113 | Welding alloy and articles for use in welding, weldments and methods for producing weldments A nickel, chromium, iron alloy for use in producing weld deposits. The alloy comprises, in weight percent, about 27 to 31.5 chromium; about 7 to 11 iron; about 0.005 to 0.05 carbon; less than about 1.0 manganese, preferably 0.30 to 0.95 manganese; about 0... | 06/05/2001 |
| 6110422 | Ductile nickel-iron-chromium alloy A ductile alloy consisting essentially of, by weight percent, 0.05 to 0.4 aluminum, at least 0.003 calcium, 0 to 0.05 carbon, 19.5 to 23.5 chromium, 1.5 to 3 copper, 0 to 1 manganese, 2.5 to 3.5 molybdenum, 38 to 46 nickel, 0.6 to 1.2 titanium and the bal... | 08/29/2000 |
| 6106643 | Hot working high-chromium alloy Hot working a nickel-chromium alloy that contains by weight percent, 42 to 65 chromium, 0.002 to 0.1 calcium, 0.002 to 0.1 magnesium, 0 to 2 aluminum, about 0 to 5 cobalt, 0 to 3 copper, 0 to 5 iron, 0 to 5 manganese, 0 to 3 molybdenum, 0 to 3 niobium, 0 ... | 08/22/2000 |
| 5997809 | Alloys for high temperature service in aggressive environments An alloy resistant to carburization and high temperature oxidation. The alloy consists essentially of, by weight percent, 27 to 35 chromium, 0 to 7 iron, about 3 to 4.4 aluminum, 0 to 0.4 titanium, 0.2 to 3 niobium, 0.12 to 0.5 carbon, 0 to 0.05 zirconium... | 12/07/1999 |
| 5945067 | High strength corrosion resistant alloy The alloy consists of an age hardenable-corrosion resistant alloy useful for oil and gas applications that require resistance to low-level sour gas conditions. This alloy contains, by weight percent, 20 to 36 nickel, 18 to 25 chromium, 1 to 8 molybdenum, ... | 08/31/1999 |
| 5873950 | Strengthenable ethylene pyrolysis alloy There is provided a nickel-base alloy with service enhanced strengthening properties. When exposed to ethylene pyrolysis conditions, namely a carbon containing environment and at temperatures of at least about 900° C., the alloy forms M6 C and... | 02/23/1999 |
| 5688471 | High strength low thermal expansion alloy The alloy of the invention provides a low coefficient of thermal expansion alloy having a CTE of about 4.9×10-6 m/m/°C. or less at 204° C. and a relatively high strength. The alloy contains about 40.5 to about 48 nickel, about 2 to about 3.7... | 11/18/1997 |
| 5425912 | Low expansion superalloy with improved toughness A high strength, low coefficient of thermal expansion superalloy exhibiting improved toughness over a broad temperature range down to about 4° K. The composition is adapted for use with wrought superconducting sheathing.... | 06/20/1995 |
| 5422071 | Heat resistant iron/steel weld material The invention provides a welding material useful for welding cast iron, the welding material forms a weld deposit containing, as measured in the undiluted condition, by weight percent, about 30-50% nickel, about 8-20% manganese, about 0 to 0.6% carbon, ab... | 06/06/1995 |
| 5403547 | Oxidation resistant low expansion superalloys An oxidation resistant alloy containing iron, cobalt, nickel and at least 4 to 5% by weight aluminum having at least a duplex crystalline structure. One crystalline component of this structure is a gamma (fcc) phase having a gamma prime phase dispersed th... | 04/04/1995 |
| 5372662 | Nickel-base alloy with superior stress rupture strength and grain size control A nickel-chromium-molybdenum-cobalt alloy has additions of tantalum and tungsten to provide superior stress rupture strength in the presence of grain size control agents, and has the following composition: ______________________________________ C... | 12/13/1994 |
| 5328499 | Mechanically alloyed nickel-base composition having improved hot formability characteristics A mechanically alloyed composition of matter containing 30-40% chromium, 0-15% cobalt, 0-10% iron, 0.2-1.0% aluminum, 0.3-1.2% titanium, greater than 1-5% tantalum and/or niobium, 0.2-1% yttria, usual processing and trace impurities, and the balance nicke... | 07/12/1994 |
| 5322666 | Mechanical alloying method of titanium-base metals by use of a tin process control agent The invention provides a method of mechanical alloying a titanium-base metal powder. Titanium-base metal powder is provided in a mechanical alloying apparatus. The mechanical alloying apparatus has a controlled atmosphere to prevent excessive oxidation of... | 06/21/1994 |
| 5312697 | Alloy overlay having thermal characteristics similar to those of a substrate A nickel-base alloy suitable for overlaying steel substrates. The alloy and steel have similar thermal conductivities and thermal coefficients of expansion. The alloy broadly initially contains about 15-20% molybdenum, about 5-10% chromium, up to about 2%... | 05/17/1994 |
| 5308698 | Flux for coated welding electrode The invention provides a coated electrode for producing a nickel-base weld deposit containing at least 12 weight percent chromium. The coated electrode includes a flux surrounding the core wire. The flux includes in parts by weight 5 to 35 strontium carbo... | 05/03/1994 |
| 5308407 | Electroslag welding flux The invention provides an electroslag welding flux that is especially useful for welding copper-nickel alloys. The electroslag flux contains by weight percent 50 to 95 fluoride compound, 0 to 45 oxide compound, 1 to 25 rare earth-containing material, 1 to... | 05/03/1994 |
| 5253848 | Valve for molten metal conduit A device for stopping flow of molten metal through a conduit having a longitudinal central passage. A ceramic seal is placed through a wall of a ceramic pipe for preventing flow of the molten metal through the opening in the wall of the ceramic pipe. A no... | 10/19/1993 |
| 5240521 | Heat treatment for dispersion strengthened aluminum-base alloy The invention provides a method for heat treating aluminum-base alloys. The method increases stress corrosion resistance after heating of the alloy to temperatures between 100° C. and 150° C. A dispersion strengthened aluminum-base alloy containing lith... | 08/31/1993 |
| 5226980 | Skid rail alloy A novel oxide-dispersion strengthened type heat-resistant alloy is provided for use of preparing furnace members such as a skid rail. The alloy consists essentially of up to about 0.2% C+N, up to about 2.0% Si, up to about 2.0% Mn, about 15 to 35% Ni and ... | 07/13/1993 |
| 5225675 | Method of monitoring removal of metal treatment solutions The invention provides a method of improving cleaning operations for metals. A fluorescent dye is introduced into metal treatment solution and the surface of a metal product is treated with the treatment solution. The metal product with the treatment solu... | 07/06/1993 |
| 5217545 | Heater sheath alloy A material for electric heater element sheathing, which has good weldability, is oxidation- and corrosion-resistant, and forms an eye-pleasing dark gray or black surface oxide, consists essentially of, by weight, from about 8.75-15.5% nickel, about 19.5-2... | 06/08/1993 |
| 5209772 | Dispersion strengthened alloy A dispersion-strengthened (DS) alloy, more particularly oxide-dispersion-strengthened (ODS) iron-based alloys which manifest resistant to oxidation at temperatures as high as 1300° C. (approx. 2400° F.) whereby the alloys are useful in the production of... | 05/11/1993 |
| 5171968 | Low porosity welding electrode The invention provides a welding electrode useful for reducing nitrogen porosity in a weld. A metallic base having 1.5 to 6 weight percent titanium, balance essentially nickel is used. The resulting deposit has less than 0.5 weight percent titanium to ens... | 12/15/1992 |
| 5171381 | Intermediate temperature aluminum-base alloy The invention comprises an alloy having improved intermediate temperature properties at temperatures up to about 316° C. The alloy contains (by weight percent) about 1-6% X contained as an intermetallic phase in the form of Al3 X. X is at leas... | 12/15/1992 |
| 5169461 | High temperature aluminum-base alloy The alloy of the invention has improved intermediate temperature properties at temperatures up to about 482° C. The alloy contains (by weight percent) a total of about 6-12% X contained as an intermetallic phase in the form of Al3 X. X is sele... | 12/08/1992 |
| 5167728 | Controlled grain size for ODS iron-base alloys The process of the invention relates to forming MA iron-base ODS alloys. A billet of iron-base ODS alloy is provided. The billet is consolidated at a temperature within a predetermined range of sufficient temperature for formation of coarse and/or fine gr... | 12/01/1992 |
| 5160382 | Heater sheath alloy A material for electric heater element sheathing, which has good weldability, is oxidation- and corrosion-resistant, and forms an eye-pleasing dark gray or black surface oxide, consists essentially of, by weight, from about 8.75-15.5% nickel, about 19.5-2... | 11/03/1992 |
| 5139236 | Melt facility for continuous upcaster A furnace system particularly adapted for use with a continuous upcaster. Instead of employing discrete furnaces, tundishes, ladles and the like, the instant unitary system employs a furnace, a feeding mechanism for directly introducing material into the ... | 08/18/1992 |
| 5124530 | Stable low fume stainless steel welding electrode The invention provides a coated electrode suitable for welding stainless steel. The coated electrode uses a stainless steel core wire. The flux contains by weight percent a total of 0 to 14.5 alkali metal and aluminum fluoride, about 0.5 to 12.5 cerium fl... | 06/23/1992 |
| 5120614 | Corrosion resistant nickel-base alloy A nickel-chromium-molybdenum-niobium alloy affords high resistance to aggressive corrosives, including chlorides which cause crevice corrosion and oxidizing acids which promote intergranular corrosion, the alloy also being readily weldable and possessing ... | 06/09/1992 |
| 5114505 | Aluminum-base composite alloy A composite aluminum-base alloy having a mechanically alloyed matrix alloy. The matrix alloy has about 4-40 percent by volume aluminum-containing intermetallic phase. The aluminum-containing intermetallic phase includes at least one element selected from ... | 05/19/1992 |
| 5034373 | Process for forming superconductor precursor The invention provides a process for production of silver-containing precursor alloys to oxide superconductors, said alloys having reduced amounts of intermetallics. Powders containing metallic elemental components of an oxide superconductor are high ener... | 07/23/1991 |
| 5032190 | Sheet processing for ODS iron-base alloys The process of the invention provides an improved method for forming sheet of iron-base ODS alloys. Powder containing iron and a substantially uniformly distributed oxide dispersoid is hot compacted into a billet. The billet is hot rolled in a first direc... | 07/16/1991 |
| 5019184 | Corrosion-resistant nickel-chromium-molybdenum alloys A homogenizaton heat treatment for enhancing crevice and pitting corrosion resistance minimizes the formation of Mu phase in nickel-base alloys of high combined percentages of chromium, e.g., 19 to 23% and molybdenum, e.g., 14 to 17%, particularly togethe... | 05/28/1991 |
| 5016460 | Durable method for producing finned tubing The method of the invention produces a method for fabricating a metal tube that contains at least 30 wt % nickel and 10 wt % chromium. The invention utilized an elongated mandral having an oversized diameter and oversized land portions. The oversized land... | 05/21/1991 |
| 5017249 | Nickel-base alloy A nickel-chromium alloy exhibiting enhanced stress rupture strength and grain size stability at elevated temperatures up to about 1260° (2300° F.) due to the affirmative formation of M6 C carbide within the alloy. The alloy is especially usef... | 05/21/1991 |
