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PICKERING & CO INC

Overview
  • Total Patents
    70
About

PICKERING & CO INC has a total of 70 patent applications. Its first patent ever was published in 1957. It filed its patents most often in United States, Switzerland and United Kingdom. Its main competitors in its focus markets audio-visual technology, electrical machinery and energy and measurement are NORRIS ELWOOD G, NIDEC PIGEON CORP and CIE GENERALE DES MACHINES PARL.

Patent filings in countries

World map showing PICKERING & CO INCs patent filings in countries

Patent filings per year

Chart showing PICKERING & CO INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chass Jacob 11
#2 Alexandrovich George 8
#3 Vitale Paul 5
#4 Stanton Walter O 5
#5 Wittenberg Roland C 4
#6 Walter Oliver Stanton 3
#7 John Paul Kuehn 3
#8 Hofer Alan 3
#9 Albert Neil F 3
#10 Laurel Hollow 2

Latest patents

Publication Filing date Title
US4445103A Rotary differential transformer with constant amplitude and variable phase output
US4437019A Linear differential transformer with constant amplitude and variable phase output
US4509159A Aluminum-aluminum oxide stylus arm
US4409588A Miniature sounder with multi-part tuned cavities
US4347491A Rotary variable differential transformer with substantially linear output
US4345230A Multiple rotary variable differential transformer on common shaft with leakage flux compensation
US4251807A Miniature buzzer
US4140321A Phonograph cartridge replaceable stylus assembly
US4153257A Record stamper playback turntable
US4129305A Phonograph turntable electro-thermal cueing control
US4113266A Playback stylus for phonograph record stamper
US4113267A Double stylus assembly for phonograph record stamper playback
US3948529A Phonograph turntable anti-skating device
US3964751A Phonograph cartridge replaceable stylus assembly
US3882436A Differential transformer
US3694785A Temperature compensating differential transformer
US3663911A Variable scale differential transformer
US3646279A Induced magnetic moving iron stereophonic phonograph pickup with replaceable stylus assembly and one common pole piece
US3602519A Phonograph cartridge mounting platform
US3551866A Rotary variable differential transformer