NELSON INDUSTRIES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 21113
 
  
 
H03B GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS 459
 
  
 
F02M SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 380
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 270
 
  
 
G10K SOUND-PRODUCING DEVICES 233
 
  
 
A47B TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE 151
 
  
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 197
 
  
 
F01M LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING 132
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 148
 
  
 
F16M FRAMES, CASINGS, OR BEDS, OF ENGINES OR OTHER MACHINES OR APPARATUS, NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS134

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9179772 Sliding-tube adjustable support legSep 09, 14Nov 10, 15[A47B, F16M, F16B]
6641637 Additional flow filterJun 18, 02Nov 04, 03[B01D]
6627078 Filter element cover gripAug 22, 01Sep 30, 03[B01D]
6537339 Moisture draining inside-out reverse flow air filter, mold and methodMay 04, 01Mar 25, 03[B01D]
6511599 Multi-element cylindrical filter with equalized flowDec 18, 00Jan 28, 03[B01D]
6482247 Multi-panel fluid filter with equalized contaminant passagesDec 18, 00Nov 19, 02[B01D]
6478018 Multi-peripheral perimeter sealed flat panel coalescing filter elementJun 15, 01Nov 12, 02[F02M]
6478019 Flat low profile diesel engine crankcase ventilation filterJun 15, 01Nov 12, 02[F02B]
6478959 Self-fixturing filterNov 14, 00Nov 12, 02[B01D]
6436162 Twist and lock filter housing with anti-rotation stopMar 22, 00Aug 20, 02[B01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6709575 Extended life combination filterExpiredDec 21, 00Mar 23, 04[B04B, B01D]
6596043 Air/oil separator tank with permanent drain layerExpiredOct 17, 01Jul 22, 03[B01D]
6568540 Low force closure filter with integral sealExpiredDec 13, 00May 27, 03[B01D]
6319402 Extended life dual full-flow and bypass filterExpiredDec 17, 99Nov 20, 01[B01D]
6155336 Power steering reservoir and coolerExpiredDec 21, 99Dec 05, 00[F24H]
5172416 Active attenuation system with specified output acoustic waveExpiredNov 14, 90Dec 15, 92[H03B]
5088575 Acoustic system with transducer and venturiExpiredSep 13, 90Feb 18, 92[F01N]
5044464 Active acoustic attenuation mixing chamberExpiredJan 23, 90Sep 03, 91[F01N]
5033082 Communication system with active noise cancellationExpiredJul 31, 89Jul 16, 91[H04B]
5022082 Active acoustic attenuation system with reduced convergence timeExpiredJan 12, 90Jun 04, 91[G10K]
4987598 Active acoustic attenuation system with overall modelingExpiredMay 03, 90Jan 22, 91[G10K, H04R]
4919394 Railing constructionExpiredFeb 01, 89Apr 24, 90[E04H]
4837834 Active acoustic attenuation system with differential filteringExpiredMay 04, 88Jun 06, 89[G10K]
4815139 Active acoustic attenuation system for higher order mode non-uniform sound field in a ductExpiredMar 16, 88Mar 21, 89[H04B, H04R]
4811309 Microphone probe for acoustic measurement in turbulent flowExpiredSep 04, 87Mar 07, 89[H04R]
4736431 Active attenuation system with increased dynamic rangeExpiredOct 23, 86Apr 05, 88[H04B]
4677676 Active attenuation system with on-line modeling of speaker, error path and feedback packExpiredFeb 11, 86Jun 30, 87[G10K, H04R]
4677677 Active sound attenuation system with on-line adaptive feedback cancellationExpiredSep 19, 85Jun 30, 87[G10K, H04R, H04B, F01N]
4468925 Modular engine manifold constructionExpiredAug 05, 82Sep 04, 84[F01N]
4450932 Heat recovery mufflerExpiredJun 14, 82May 29, 84[F16D, F16F]

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