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TRACTECH INC

Overview
  • Total Patents
    140
About

TRACTECH INC has a total of 140 patent applications. Its first patent ever was published in 1980. It filed its patents most often in United States, Canada and Mexico. Its main competitors in its focus markets mechanical elements and machines are PRELOAD GEARBOX LTD, BTR ENG AUSTRALIA and MAAG GETRIEBE AG.

Patent filings per year

Chart showing TRACTECH INCs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Dissett Walter L 65
#2 Bawks James R 23
#3 Valente Paul J 21
#4 Choma Alvin A 10
#5 Edwards Timothy R 10
#6 Lane Jeffrey P 8
#7 Neumann Lawrence T 6
#8 Disset Walter L 5
#9 Schou Carl E 5
#10 Wogaman Jason L 5

Latest patents

Publication Filing date Title
US2007026992A1 Gearless locking differential
US6826981B1 Differential for racing cars
US2003066386A1 Locking differential including improved clutch member and adapter sleeve
US6309321B1 Fully-locking torque-proportioning differential
US6374701B1 Gearless differential
US6209700B1 Electric clutch including resilient disk biasing means
US6076429A Clutch for a differential
CA2219515A1 Locking differential with pin access window
CA2219369A1 Hydraulically-operable locking differential including adjustable retainer ring ducting
US5885181A Helical gear differential including lubrication passage means
US5715733A Locking differential including a spring cap biasing assembly
US5671640A Locking differential with pre-load means and C-clip retainers
US4751853A Differential with equal depth pinion cavities
US4625585A Torque-proportioning differential with sectional housing
US4644818A Differential apparatus with side-gear-centered center cam
US4677876A Torque-proportioning differential with cylindrical spacer
US4557158A Holdout ring construction for differentials
IT8320038D0 Vehicle positive clutch differential
GB8306423D0 Positive clutch differential
BR8301182A Perfect mechanism in a differential set