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SPEIDEL & KELLER KG

Overview
  • Total Patents
    50
About

SPEIDEL & KELLER KG has a total of 50 patent applications. Its first patent ever was published in 1967. It filed its patents most often in Germany, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets medical technology, measurement and engines, pumps and turbines are KUMAR ALKA, TERUMO CARDIOVASCULAR SYS and COMPUMEDICS LTD.

Patent filings per year

Chart showing SPEIDEL & KELLER KGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Speidel Blasius 35
#2 Bramm Guenter Dipl Ing 4
#3 Keller Paul 3
#4 Novak P 2
#5 Bramm G 2
#6 Novak Pavel Dipl Ing 2
#7 Novak Pavel 2
#8 Koschke Peter Dipl Ing 2
#9 Grebmeier Johann Dipl-Phys 1
#10 Beck Dieter Ing 1

Latest patents

Publication Filing date Title
DE4104619A1 DOUBLE CUFF CONTROL UNIT
DE4034381A1 Sphygmomanometer - comprises cup-shaped housing, pressure measuring mechanism with baseplate, and measurement membrane
DE4026242A1 BLOOD PRESSURE MEASURING DEVICE
CA1271735A Air release valve for sphygomanometers and the like
DE3516211A1 Electronic blood pressure monitor with a fluid flow actuated switching device
DE3003966A1 Thermographic recorder for rapidly changing and constant signals - has pen group and distributed pen code control circuits and clock generator to open and close switches
DE2931429B1 Device for bloodless blood pressure measurement
DE2926715B1 Sphygmomanometer
DE2917270A1 Control for drip infusion instrument - has drip rate controlled by adjustable saw tooth generator whose rising current gradually opens pinch valve
DE2917254A1 Magnetically-operated tube clamping valve for medical apparatus - adopts fail=safe position upon loss of electricity supply under effect of permanent magnet
DE2853504A1 Capacitive blood pressure meter with frequency transducer - has capacitor with parallel plates connected to moving parts
DE2823802A1 ELECTROMAGNETIC DRIVE DEVICE FOR OSCILLATING DISPLACEMENT PUMPS
DE2338596A1 Sphygmomanometer with spring-loaded key - to operate outlet valve body, with snap-action locking mechanism
DE2326378A1 BLOOD PRESSURE MONITOR
DE2309416A1 SWITCHABLE STETHOSCOPE DOUBLE CHEST
DE2302852A1 FLOW AND VOLUME MEASURING DEVICE FOR NON-AGGRESSIVE GAS MEDIA
DE2254157A1 EYE TONOMETER WITH SWITCHABLE PRESSURE LOAD, WITH ELECTRIC ANALOGUE AND DIGITAL DISPLAY OF THE MEASURED VALUES AND WITH INTERCHANGEABLE APPLICATION TOOLS
DE2238780A1 MEASURING DEVICE FOR HAEMODYNAMIC SIZES WITH SEPARATE AUTOMATICALLY FIXED DISPLAYS
DE2220233A1 MEASURING CUFFS PREFERRED FOR APPARATUS MEASUREMENT OF HAEMODYNAMIC SIZES AND FOR ANGIOLOGICAL DIAGNOSTICS
DE2217512A1 MECHANICALLY DRIVEN OSCILLOGRAPH WITH ELECTRIC MEASURING VALUE REGISTRATION AND WITH ELECTRIC SAFETY CIRCUIT FOR ANGIOLOGICAL DIAGNOSTICS AND FOR CAPTURING HAEMODYNAMIC SIZES