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RUF OHG WILHELM

Overview
  • Total Patents
    24
About

RUF OHG WILHELM has a total of 24 patent applications. Its first patent ever was published in 1965. It filed its patents most often in Germany, Italy and Austria. Its main competitors in its focus markets electrical machinery and energy and basic communication technologies are WALTER PREH, PREH GMBH WALTER and LAMARE RAYMOND.

Patent filings in countries

World map showing RUF OHG WILHELMs patent filings in countries
# Country Total Patents
#1 Germany 18
#2 Italy 2
#3 Austria 1
#4 Switzerland 1
#5 France 1
#6 United Kingdom 1

Patent filings per year

Chart showing RUF OHG WILHELMs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Hindermayr Martin 16
#2 Wagner Ferdinand 6
#3 Doernen Peter Dr 5
#4 Johannes Mertig Dipl-Ing 2
#5 Bluemel Reinhard 2
#6 Pissulla Horst 2
#7 Martin Hindermayr 1
#8 Brunner Wolfgang 1
#9 Ferdinand Wagner 1
#10 Kamke Klaus 1

Latest patents

Publication Filing date Title
DE2344255A1 Push-button operated pressure switch - has pivoted switching element under spring force and reciprocating slider
DE2343665A1 CHANGEABLE RESISTANCE
DE2339167A1 Multiple rotary resistor assembly - has single and tendem resistors engaged selectively via cogs by axially sliding setting shaft
DE2320047A1 CHANGEABLE RESISTANCE WITH A DRIVE SPINDLE
DE2310136A1 SLIDE RESISTANCE
DE2251164A1 CHANGEABLE RESISTANCE WITH A DRIVE SPINDLE
DE2251293A1 SLIDE RESISTANCE
DE2151970A1 TUNING DEVICE FOR HIGH FREQUENCY RECEIVER
DE1917678A1 Tuning unit for high-frequency receivers
DE1812287A1 Slide resistor suitable for use with radio, television, tape recorders and similar devices
DE1766613A1 Tuning unit with sliding resistors for receivers with capacitance diodes
DE1766382A1 Tuning unit for receivers with capacitance diodes
DE1765278A1 Resistance arrangement for tuning units with capacitance diodes
DE1616305A1 Tuning unit for receivers with capacitance diodes
DE1665502A1 Changeable tandem resistance operated by a roller wheel
DE1665499A1 Adjustable resistance operated by a roller wheel
DE1466235A1 Arrangement for tuning display in high-frequency receivers, especially in television sets with tuning through capacitance diodes
DE1540321A1 Add-on switch with tilting mechanism