NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C23F NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES 729
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM4153
 
  
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 498
 
  
 
B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 255
 
  
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 262
 
  
 
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 296
 
  
 
C08B POLYSACCHARIDES; DERIVATIVES THEREOF 229
 
  
 
C08J WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER- TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C C08F, C08G or C08H 276
 
  
 
C10M LUBRICATING COMPOSITIONS 247
 
  
 
E04H BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 228

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
9656201 Smart, on-demand controlled release corrosion protection and/or prevention of metals in an enclosureDec 24, 14May 23, 17[C23F, B01D]
9556635 Storage tank bottom corrosion protection systemDec 02, 14Jan 31, 17[C23F, E04H]
9303380 Systems for corrosion protection of storage tank soil side bottomsOct 15, 14Apr 05, 16[E02D, B65D, E04H]
9169720 Corrosion management systems for vertically oriented structuresMar 08, 13Oct 27, 15[E21B]
9121539 Corrosion management systems for controlling. eliminating and/or managing corrosionApr 25, 08Sep 01, 15[F16L, C23F]
8720390 Fuel performance boosterSep 13, 12May 13, 14[C01B, F02B]
8557372 Laminate for preserving foodFeb 25, 11Oct 15, 13[B65D]
8557373 Laminate for protecting metals from corrosive gasesSep 28, 12Oct 15, 13[B32B]
8377531 Systems and methods for preventing and/or reducing corrosion in various types of tanks containers and closed systemsSep 08, 11Feb 19, 13[B29D, C23F, B32B, B65B]
8309021 Corrosion management systems for controlling, eliminating and/or managing corrosionApr 25, 08Nov 13, 12[F16K, B05B, B08B, G05D, C23F, B65D, B67D]

View all patents..

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8418757 Corrosion management systems for vertically oriented structuresExpiredMay 05, 11Apr 16, 13[E21B]
8354072 Corrosion management systems for controlling, eliminating and/or managing corrosionExpiredJul 30, 12Jan 15, 13[F16K, B05B, B08B, B65D, A61L, B67D]
2012/0275,951 System for Decreasing Environmental Corrosion Factors and/or for Delivering One or More Corrosion Inhibiting Compounds to an EnclosureAbandonedJun 13, 12Nov 01, 12[B01J, C23F]
2012/0040,151 RUST-RESISTANT TAPEAbandonedOct 21, 11Feb 16, 12[C09J, B32B]
2009/0012,825 Method for determining and/or managing corrosion and/or contaminationAbandonedFeb 20, 07Jan 08, 09[G06Q]
2008/0118,419 Systems for decreasing environmental corrosion factors and/or for delivering one or more corrosion inhibiting compounds to an enclosureAbandonedNov 20, 06May 22, 08[C23F]
7261759 Powder metal mixture including micronized starchExpiredJan 14, 04Aug 28, 07[B22F]
7150775 Powder metal mixture including micronized cellulose fibersExpiredJan 14, 04Dec 19, 06[B22F]
2006/0062,994 Biofriendly corrosion-inhibiting layer deposited from fugitive biodegradable solvent and film-forming oilAbandonedSep 22, 04Mar 23, 06[B32B]
6998371 Nail polish remover comprising fatty acid ester and alkyl lactateExpiredJan 07, 04Feb 14, 06[C11D]
2004/0181,002 Process for infusing an alkali metal nitrite into a synthetic resinous materialAbandonedJan 20, 04Sep 16, 04[C08K]
2004/0173,779 Biodegradable shaped article containing a corrosion inhibitor and inert filler particlesAbandonedMar 20, 04Sep 09, 04[C09K, C23F]
2003/0220,436 Biodegradable polymers containing one or more inhibitors and methods for producing sameAbandonedMar 25, 03Nov 27, 03[C08K]
2003/0213,936 Corrosion inhibiting formula and corrosion inhibiting articles using sameAbandonedJun 03, 03Nov 20, 03[C09K, C08K]
2003/0207,103 System and method for protecting surfaces against corrosive compoundsAbandonedMay 03, 02Nov 06, 03[B32B]
2003/0207,974 Tarnish inhibiting formula and tarnish inhibiting articles using sameAbandonedJun 03, 03Nov 06, 03[C08K]
4767981 Moisture content detectorExpiredJun 02, 86Aug 30, 88[G01N]
4716360 Moisture detector apparatus and methodExpiredAug 16, 85Dec 29, 87[G01R]
4290912 Volatile corrosion inhibiting articleExpiredFeb 21, 80Sep 22, 81[C23F]

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!.