DATAHAND SYSTEMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 1101
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 1127
 
  
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 1110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5743666 Adjustable keyboardFeb 25, 97Apr 28, 98[B41J]
5514866 Switch assemblyOct 04, 93May 07, 96[H01J, H03M]
5376764 Three-way switchOct 27, 93Dec 27, 94[H01H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6677843 Magnetically coupled pushbutton plunger switchExpiredJun 06, 03Jan 13, 04[H01H]
5921382 Magnetically enhanced membrane switchExpiredSep 30, 98Jul 13, 99[H01H]
D362425 Switch assemblyExpiredOct 12, 93Sep 19, 95[]
D356553 KeyboardExpiredOct 28, 93Mar 21, 95[]

Top Inventors for This Owner

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