Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Material Science
Class Information
Number: 420/86
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Lead, bismuth, selenium, tellurium or calcium containing > Processes > Adding lead
Description: Processes wherein the added elements under subclass 84 includes lead.










Patents under this class:

Patent Number Title Of Patent Date Issued
4892580 Lead-containing additive for steel melts Jan. 9, 1990
4863684 Method and apparatus for adding shot to molten steel Sep. 5, 1989
4806304 Free cutting steel Feb. 21, 1989
4781887 Production of steels containing low melting point metals Nov. 1, 1988
4751047 Method of adding low-melting-point metal to molten steel Jun. 14, 1988
4747584 Apparatus for injecting alloying ingredient into molten metal stream May. 31, 1988
4668310 Amorphous alloys May. 26, 1987
4602949 Method and apparatus for adding solid alloying ingredients to molten metal stream Jul. 29, 1986
4389249 Method for adding ingredient to steel as shot Jun. 21, 1983
4326886 Steel for cold forging having good machinability and the method of making the same Apr. 27, 1982
4244737 Method and alloy for introducing machinability increasing ingredients to steel Jan. 13, 1981
4203763 Method of manufacturing a lead alloy steel and a steel made according to the method May. 20, 1980
4200458 Method for the alloying of a metal melt Apr. 29, 1980











 
 
  Recently Added Patents
Resource capacity monitoring and reporting
Substituted di-arylhydantoin and di-arylthiohydantoin compounds and methods of use thereof
Warm air generating apparatus, sheet feeding apparatus, and image forming apparatus including warm air generating apparatus and sheet feeding apparatus
Devices, systems, and methods for tactile feedback and input
Active pulse blood constituent monitoring
Identifying conceptually related terms in search query results
Voltage regulator with improved voltage regulator response and reduced voltage drop
  Randomly Featured Patents
Method and apparatus for water flow stimulation in a well
Adaptive data security systems and methods
Wear and corrosion resistant nickel-base alloy
Dynamically illuminated footwear
Method of fabricating non-volatile memory integrated circuit device and non-volatile memory integrated circuit device fabricated using the same
Carbon electrode materials for electrochemical cells and method of making same
Speech recognition apparatus, speech recognition method and recording medium having speech recognition software program recorded thereon
Method and apparatus for electromagnetically assisted liposuction
Cartridge-type faucet valve with improved seal
Substituted pyridine herbicides