DeFelsko Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 15191
 
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 5154
 
 
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS495
 
 
 
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
 
 
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR166
 
 
 
G01S RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES1108
 
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0278,257 PROBE COMMUNICATIONS MODULE AND A COMPUTING DEVICEMar 11, 14Sep 18, 14[G01R]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9207174 Apparatus and method for characterizing a replica tapeFeb 20, 15Dec 08, 15[G01N, G01B]
9188672 Ultrasonic measuring gaugeApr 13, 12Nov 17, 15[G01N, G01S, G01B]
8994933 Apparatus and method for characterizing a replica tapeJan 09, 14Mar 31, 15[G01N, G01B]
8475100 Wall fastener with knife blade and a stringSep 14, 12Jul 02, 13[F16B]
RE41342 Coating thickness gaugeApr 03, 00May 18, 10[G01N]
6282962 High resolution ultrasonic thickness gaugeOct 15, 97Sep 04, 01[G01N]
6250160 High resolution ultrasonic thickness gaugeDec 10, 98Jun 26, 01[G01N]
6122968 Delay line for an ultrasonic probe and method of using sameAug 12, 99Sep 26, 00[G01N]
6050140 Adhesion testerJul 31, 98Apr 18, 00[G01N]
6026586 Powder coating thickness gaugeDec 08, 97Feb 22, 00[G01B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0008,717 Wall Fastener with Knife Blade and a StringAbandonedJul 09, 09Jan 14, 10[F16B]
5751608 Coating thickness gaugeWithdrawnSep 15, 95May 12, 98[]
5397027 Stopper for a metered dispensing unitExpiredOct 04, 93Mar 14, 95[G01F]
5293132 Coating thickness measurement gaugeExpiredJun 01, 93Mar 08, 94[G01R]
5241280 Coating thickness measurement gaugeExpiredJun 01, 90Aug 31, 93[G01R]
D331201 Coating thickness measurement gaugeExpiredOct 26, 90Nov 24, 92[]
5094009 Gauge for measuring the thickness of a coating on a substrateExpiredOct 17, 90Mar 10, 92[G01B]
4741426 Coin acceptor for vending machineExpiredDec 04, 86May 03, 88[G07D, G07F]
4705153 Coin acceptor for vending machineExpiredDec 23, 85Nov 10, 87[G07D, G07F]
4599562 Method and apparatus for magnetically measuring a coating with a plurality of magnetsExpiredOct 10, 84Jul 08, 86[G01B]
D273465 Positest thickness gageExpiredOct 23, 81Apr 17, 84[]
4433290 Magnetic coating thickness comparator having parallel magnetic rods with nonmagnetic slide indicatorsExpiredJul 07, 83Feb 21, 84[G01B, G01R]

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