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DIGITAL EQUIPMENT CORP

Overview
  • Total Patents
    5,784
About

DIGITAL EQUIPMENT CORP has a total of 5,784 patent applications. Its first patent ever was published in 1958. It filed its patents most often in United States, EPO (European Patent Office) and Japan. Its main competitors in its focus markets computer technology, audio-visual technology and digital networks are SYMBIOS INC, UNISYS CORP and CAREY JAMES E.

Patent filings per year

Chart showing DIGITAL EQUIPMENT CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sites Richard L 108
#2 Witek Richard T 104
#3 Fossum Tryggve 89
#4 Cutler David N 71
#5 Weng Lih-Jyh 66
#6 Williams Douglas D 63
#7 Stewart Robert E 62
#8 Orbits David A 59
#9 Lary Richard F 56
#10 Cardoza Wayne 56

Latest patents

Publication Filing date Title
US6320735B1 Electrostatic discharge protection clamp for high-voltage power supply or I/O with nominal-or high-voltage reference
US6195377B1 Embedded input logic in a high input impedance strobed CMOS differential sense amplifier
CN1241748A Bit-depth increase by bit replication
EP0919928A2 Memory allocation method and apparatus with an even distribution of cache page addresses within virtual memory regions
JP2000215189A Multiprocessor computer architecture accompanied by many operating system instances and software control system resource allocation
US6133717A Methods and apparatus for synchronizing a plurality of power supplies
US6011679A Methods and apparatus for controlling a power supply with improved techniques for providing protection limits
US5918957A Pivoting door system for a portable computer
US6046571A Port replicator with secure integral battery charging cradle
US6097593A Semi-mobile desktop personal computer
US6084455A High-speed CMOS latch
US6005368A Charging system for computer with docking station
US6286109B1 Method and apparatus for reducing heat generation in a portable computer
US6138182A Peripheral identification using bypassable impedances connected in series
US6151208A Wearable computing device mounted on superior dorsal aspect of a hand
US6108770A Method and apparatus for predicting memory dependence using store sets
US6199153B1 Method and apparatus for minimizing pincount needed by external memory control chip for multiprocessors with limited memory size requirements
JPH1115759A Full text index type mail preserving device
US6112267A Hierarchical ring buffers for buffering data between processor and I/O device permitting data writes by processor and data reads by I/O device simultaneously directed at different buffers at different levels
US5959241A Scanning force microscope thermal microprobe