Inventor · disambiguated record
Friedrich Schwing
Also filed as: SCHWING FRIEDRICH · SCHWING FRIEDRICH W
28 granted patents·3 pending applications·440 citations·filing 1975–2019
97Inventor score
Top patents by PatentIndex Score
31 records- 0189US6871667B2Distribution device for thick matter, especially for concreteSCHWING GMBH F·Filed 2002·Granted Mar 29, 2005·42 cites·18 claims
- 0283US6463958B1Distributing device for thick substances, especially concreteSCHWING GMBH F·Filed 1999·Granted Oct 15, 2002·40 cites·10 claims
- 0381US4178142ADouble-cylinder pump especially for conveying cementSCHWING GMBH F·Filed 1977·Granted Dec 11, 1979·35 cites·9 claims
- 0473US4465441ATwo-cylinder pump for heavy flowable materials, such as concreteSCHWING GMBH F·Filed 1982·Granted Aug 14, 1984·21 cites·19 claims
- 0573US4343598AViscous material pump, particularly for concreteSCHWING GMBH F·Filed 1980·Granted Aug 10, 1982·26 cites·2 claims
- 0669US4373225APiping valve with a housing for the transfer of a wiper insertable in conduits that supply pressurized viscous material, preferably concreteSCHWING GMBH F·Filed 1980·Granted Feb 15, 1983·26 cites·11 claims
- 0767US5380174APump for thick matter having delivery cylinders, in particular a two-cylinder concrete pumpSCHWING GMBH F·Filed 1993·Granted Jan 10, 1995·25 cites·9 claims
- 0866US4373875AViscous material pump, in particular for the conveyance of concreteSCHWING GMBH F·Filed 1980·Granted Feb 15, 1983·22 cites·5 claims
- 0963US4951806ADouble belt conveyor bandSCHWING GMBH F·Filed 1987·Granted Aug 28, 1990·19 cites·13 claims
- 1063US4280771AApparatus for distributing concrete, especially in the shuttering of gallery linings in mine and tunnel workingsSCHWING GMBH F·Filed 1978·Granted Jul 28, 1981·19 cites·7 claims
- 1162US5316453ASlurry pump with discharge cylinders, especially two-cylinder concrete pumpSCHWING GMBH F·Filed 1993·Granted May 31, 1994·21 cites·16 claims
- 1259US4019839ADistributing valves for viscous materialsSCHWING GMBH F·Filed 1975·Granted Apr 26, 1977·13 cites·14 claims
- 1356US4191513APump for conveying cementSCHWING GMBH F·Filed 1978·Granted Mar 4, 1980·13 cites·4 claims
- 1455US4057373AMulti-cylinder pump for concreteSCHWING GMBH F·Filed 1975·Granted Nov 8, 1977·13 cites·10 claims
- 1553US9046086B2Method for feeding pasty masses and pump device for feeding pasty massesSCHWING FRIEDRICH·Filed 2010·Granted Jun 2, 2015·1 cites·8 claims
- 1652US11891987B2Piston pump and method for operating a piston pumpSCHWING GMBH F·Filed 2019·Granted Feb 6, 2024·0 cites·19 claims
- 1750US5325761ASwitching arrangement for controlling the speed of hydraulic drivesSCHWING GMBH F·Filed 1992·Granted Jul 5, 1994·10 cites·4 claims
- 1850US4799573AAdjustable personnel platformSCHWING GMBH F·Filed 1987·Granted Jan 24, 1989·16 cites·7 claims
- 1948US6450779B1Two-cylinder thick matter pumpSCHWING GMBH F·Filed 1998·Granted Sep 17, 2002·12 cites·15 claims
- 2047US5513911AVehicle mixerSTETTER GMBH·Filed 1995·Granted May 7, 1996·12 cites·14 claims
- 2146US4472118AMulti-way valves for pumps for conveying heavy flowable materialsSCHWING GMBH F·Filed 1982·Granted Sep 18, 1984·9 cites·7 claims
- 2243US4681022ATwo-cylinder viscous liquid pump with pipe switchSCHWING GMBH F·Filed 1985·Granted Jul 21, 1987·8 cites·7 claims
- 2340US2016040659A1Pump devices for feeding pasty massesSCHWING FRIEDRICH·Filed 2015·Application pending·0 cites
- 2439US4776450ATwin-belt band conveyorSCHWING FRIEDRICH WILH·Filed 1985·Granted Oct 11, 1988·11 cites·11 claims
- 2538US4556370ATwin cylinder pumps, more specially for concreteSCHWING GMBH F·Filed 1983·Granted Dec 3, 1985·5 cites·8 claims
- 2637US5353684AHydraulic control device for working cylinders with unequal piston speedsSCHWING GMBH F·Filed 1993·Granted Oct 11, 1994·5 cites·5 claims
- 2734US6206662B1Two-cylinder slurry pumpSCHWING GMBH F·Filed 1998·Granted Mar 27, 2001·5 cites·7 claims
- 2834US5263828ATwo-cylinder thick matter pump having a piston storageSCHWING GMBH F·Filed 1992·Granted Nov 23, 1993·9 cites·14 claims
- 2934US2006275139A1Method of controlling a pump apparatus for conveying viscous material, and control system for such a pump apparatusSCHWING FRIEDRICH·Filed 2005·Application pending·0 cites
- 3034US2006193738A1Pump apparatus and method for continuously conveying a viscous materialSCHWING FRIEDRICH·Filed 2005·Application pending·0 cites
- 3131US4852467ASpool valve for concrete pumpsSCHWING GMBH F·Filed 1988·Granted Aug 1, 1989·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →