Harmon Industries, Inc.

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61K OTHER AUXILIARY EQUIPMENT FOR RAILWAYS 211
 
  
 
B61L GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC 224
 
  
 
G01K MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR 244
 
  
 
B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL 163
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 193

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5395078 Low speed wheel presence transducer for railroads with self calibrationSep 01, 93Mar 07, 95[B61L]
5381700 Train analysis system enhancement having threshold adjustment means for unidentified wheelsOct 15, 92Jan 17, 95[B61K, G01K, G08B]
5340062 Train control system integrating dynamic and fixed dataAug 13, 92Aug 23, 94[B61L]
5335995 Resilient support for a railroad wheel heat sensorJul 16, 93Aug 09, 94[G01K]
5331311 Railroad wheel temperature sensor with infrared arrayDec 09, 92Jul 19, 94[B60Q]
5149025 Detection of overheated railroad wheel and axle componentsSep 13, 91Sep 22, 92[B61K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6396289 Automatic adjustment of incandescent lamp voltageExpiredSep 07, 99May 28, 02[H05B, G01R]
6392553 Signal interface moduleExpiredAug 22, 00May 21, 02[G08B]
6064315 Zero speed transducerExpiredDec 29, 98May 16, 00[G08B]
5628479 Vital wheel detectorExpiredDec 12, 95May 13, 97[B61L]
5586736 Cab signal sensor with noise suppressionExpiredJun 16, 95Dec 24, 96[B61L]
5448072 Infrared hot bearing and hot wheel detectorExpiredAug 24, 93Sep 05, 95[B61K]
5170970 Method and apparatus for improving rail shuntsExpiredSep 21, 90Dec 15, 92[B61L]
5150618 Acoustic bearing defect detectorExpiredDec 04, 90Sep 29, 92[B61K, G08B, G01N]
5100243 Self-calibrating hot wheel detector for railroadsExpiredDec 12, 90Mar 31, 92[G01K]
5060890 Detection of overheated railroad wheel and axle componentsExpiredSep 29, 89Oct 29, 91[B61K]
D314919 Hot box detector scanner housingExpiredApr 04, 88Feb 26, 91[]
4934633 Crossing control unitExpiredOct 07, 88Jun 19, 90[B61L, H05B]
4928910 Detection of overheated railroad wheel and axle componentsExpiredOct 11, 88May 29, 90[B61K]
4868538 Random signature island circuitExpiredOct 07, 88Sep 19, 89[B61L]
4848873 Shutter adapted to self lock in closed and open positionsExpiredMay 25, 88Jul 18, 89[G02B, E05D]
4843885 Acoustic detection of bearing defectsExpiredMar 16, 88Jul 04, 89[G01N]
4581700 Processing system for grade crossing warningExpiredAug 06, 84Apr 08, 86[G05B]
4491290 Train defect detecting and enunciating systemExpiredAug 06, 82Jan 01, 85[B61L, G08B]
4360873 Power selection system for a consist of locomotivesExpiredSep 09, 80Nov 23, 82[G05D, G06G, B60L]
4345274 Object identification system utilizing closed circuit televisionExpiredOct 08, 80Aug 17, 82[H04N]

View all patents..

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.