ELLWOOD NATIONAL INVESTMENT CORP.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 254
 
  
 
B21K MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS, WHEELS 221
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 264
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 243
 
  
 
C22C ALLOYS 270
 
  
 
B21B ROLLING OF METAL 131
 
  
 
B21J FORGING; HAMMERING; PRESSING; RIVETING; FORGE FURNACES 119
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 169
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 1106

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9616477 Open containment frame for roller applied deep compression treatment of shaft productsOct 15, 13Apr 11, 17[B24B, B21D, B21B]
9556499 Deep laser peeningMar 15, 13Jan 31, 17[B23K, C21D]
7537727 Eglin steel—a low alloy high strength compositionJan 21, 04May 26, 09[C21D, C22C]
5330707 Steel for making very large pipe moldsJun 25, 93Jul 19, 94[C22C]
5305505 Process of making a multi-section bomb casingApr 12, 93Apr 26, 94[B21K]
5174836 Interrupted normalization heat treatment processMar 03, 92Dec 29, 92[C21D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5334269 Interrupted normalization heat treatment processExpiredOct 20, 92Aug 02, 94[C21D]
4992239 Khare steelExpiredJan 24, 90Feb 12, 91[C21D, C22C]
4919735 Khare pipe mold steelExpiredDec 29, 88Apr 24, 90[C22C]
4861549 Roller caster shell steelExpiredFeb 18, 88Aug 29, 89[C22C]
4818301 Process for producing large section, large mass forged sleeves from large diameter ingots of alloy 625 and from hot isostatically pressed preforms of alloy 625 powderExpiredNov 23, 87Apr 04, 89[C22F]
4781768 Full length forging method for producing large section, large mass cylindrical sleeves of alloy 625ExpiredNov 23, 87Nov 01, 88[C22F]
4714498 Process for producing large section, large mass forged sleeves from large diameter ingots of alloy 625ExpiredJun 27, 86Dec 22, 87[C22F]
4714499 Full length forging method for producing large section, large mass cylindrical sleeves of alloy 625ExpiredOct 01, 86Dec 22, 87[C22F]

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