Piedek Technical Laboratory

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 22340
 
  
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 1790
 
  
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 1358
 
  
 
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 855
 
  
 
G04B MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS 235
 
  
 
G01C MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY 1104
 
  
 
H01P WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE 159
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1284

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9553560 Quartz crystal unit, quartz crystal oscillator and electronic apparatusOct 07, 14Jan 24, 17[H01L, H03B, H04R, H03H]
9431957 Unit, oscillator and electronic apparatusMay 20, 14Aug 30, 16[H01L, H03B, G04B, G01C, H03H]
RE45829 Method for manufacturing a quartz crystal unitOct 14, 14Dec 29, 15[H01L, H04R, H03H]
9209381 Quartz crystal unit, quartz crystal oscillator and electronic apparatusJan 17, 13Dec 08, 15[H01L, H03B, G04B, H03H]
9203135 Method for manufacturing quartz crystal resonatorOct 11, 13Dec 01, 15[H01P, H03B, H04R, H03H]
9077308 Method for manufacturing a quartz crystal unit, quartz crystal oscillator and electronic apparatusDec 08, 11Jul 07, 15[H03B, H04R, H03H]
RE45582 Method for manufacturing a quartz crystal unitAug 02, 13Jun 23, 15[H04R, H03H]
8866567 Quartz crystal unit, quartz crystal oscillator and electronic apparatusFeb 15, 13Oct 21, 14[H01L, H03B, H04R, H03H]
8806738 Method for manufacturing quartz crystal unit, quartz crystal oscillator and electronic apparatusFeb 15, 13Aug 19, 14[H04R]
8766516 Unit, oscillator and electronic apparatusJan 17, 13Jul 01, 14[H01L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
RE41671 Quartz crystal tuning fork resonatorExpiredJun 14, 07Sep 14, 10[H01L]
7528682 Electronic apparatus having display portion and oscillator and manufacturing method of the sameExpiredAug 29, 06May 05, 09[H03B, H03H]
7412764 Method for manufacturing quartz crystal unit and electronic apparatus having quartz crystal unitExpiredDec 13, 05Aug 19, 08[H04R]
7365478 Piezoelectric crystal resonator, piezoelectric crystal unit having the crystal resonator and electronic apparatus having the crystal resonatorExpiredDec 03, 04Apr 29, 08[H01L]
6959472 Method for manufacturing quartz crystal oscillatorExpiredApr 11, 03Nov 01, 05[H03H]
6897743 Electronic apparatus with two quartz crystal oscillators utilizing different vibration modesExpiredMar 04, 03May 24, 05[H03B, H03H]
6717336 Width-extensional mode piezoelectric crystal resonatorExpiredMay 22, 02Apr 06, 04[H01L]
6707234 Quartz crystal unit, its manufacturing method and quartz crystal oscillatorExpiredNov 27, 02Mar 16, 04[H01L]
2003/0222,735 Electronic apparatusAbandonedMar 04, 03Dec 04, 03[H03H]
6545394 Lame mode quartz crystal resonatorExpiredApr 18, 01Apr 08, 03[H01L]

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