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WELCKER F

Overview
  • Total Patents
    64
About

WELCKER F has a total of 64 patent applications. Its first patent ever was published in 1958. It filed its patents most often in Germany, France and EPO (European Patent Office). Its main competitors in its focus markets mechanical elements, electrical machinery and energy and thermal processes are COOP IND INC, FISCHER W and BLAZING PRODUCTS INC.

Patent filings per year

Chart showing WELCKER Fs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Welcker Friedrich 47
#2 Welcker F 3
#3 Bieber Helmut 2
#4 Welcker Inge 1

Latest patents

Publication Filing date Title
DE102006027451A1 Pallet for transporting goods, has support plate with upper side that serves as stop surface for goods to be transported, and set of tubular supporting bases made of plastic and fastened to lower surface of support plate
DE102004013570A1 Screw connection to fasten fittings to pipe elements consists of union nut screwed on and projecting with one end over outer thread of tube element, and securing ring to prevent unscrewing
DE10353727A1 Thread has profiling in form of protrusions and/or recesses on at least one flank surface, with angular distance between two adjacent protrusions and/or recesses preferably at least 30 degrees
DE10258376A1 Sleeve insert for lead pole of rechargeable battery provided with radially projecting anchoring ribs around its outside surface
DE10245383A1 Coupling element for connecting of two pipes has contact area coming into contact with pipe on outer side, whereby contact area is coated with capsule adhesive and has structured surface in form of screw thread
DE10245384A1 Lead terminal for battery, e.g. for vehicle on-board electrical systems, has continuous, preferably cylindrical channel for connecting pin joined to battery plates and integral socket for plug pin
DE10207201A1 Connecting sleeve fits over pipe and has circumferential groove containing metal clamping ring
DE10159510A1 Safety unit for the gas supply to an equipment has a spring loaded valve, kept in the open position by a lever mechanism which can be tripped by levers held by an anchor at a magnet holder
DE10007258A1 Mobile cable connector for electrical accumulators, has cylindrical sleeve chamfered at wire insertion opening, and partly exposed wire end is ultrasonically welded to sleeve bottom after pressing
DE10003915A1 Pole terminal screw joint for lead-acid storage battery, has front face of copper-laminate end cap provided with a boring for head screw to grip through
DE10000447A1 Safety device for gas application systems
DE19945116C1 Cut-off valve for liquid or gas pipeline has sealing ring fitted between housing and surface of spherical valve body, annular groove around inlet and outlet bores in valve body improving pressure of valve body against ring in these areas
DE19936797C1 Pole terminal screw for lead-acid battery has fixing screw received in thin-walled brass screw sleeve enclosed by battery pole terminal
DE19934416A1 Device for preventing unauthorised use of gas supply comprises valve opened by pneumatic cylinder fed by gas cylinder and shut by evacuation valve operated by high-frequency or ultrasound receiver controlled by hand-operated remote control
DE19913811A1 Flexible heavy current ribbon cable and cable manufacturing method uses compression of round cross-section copper cable to provide flat rectangular cross-section maintained by spaced ultrasonic weld points
DE19910215C1 Safety arrangement for gas powered systems with cutoff element instantly switched from normal to blocking state in event of gas escape
DE19906088A1 Battery pole connection cable
DE19843265A1 Valve plug with valve body which has guide in which release device is guided and in guide probe opening is arranged also probe opening can be arranged in release device
DE19827141A1 Shut-off organ for topping-up device of battery or similar
EP0752725A2 Protective covering for the terminal screw fitting of a lead-acid secondary battery