Assignee
SVENSKA ROTOR MASKINER AB
SE·69 granted patents·1 pending application·1,633 citations·filing 1974–2014
Top patents by PatentIndex Score
70 records- 0195US4042310AScrew compressor control meansSVENSKA ROTOR MASKINER AB·Filed 1975·Granted Aug 16, 1977·78 cites·10 claims
- 0295US3975123AShaft seals for a screw compressorSVENSKA ROTOR MASKINER AB·Filed 1974·Granted Aug 17, 1976·118 cites·19 claims
- 0389US5641280ARotary screw compressor with shaft sealSVENSKA ROTOR MASKINER AB·Filed 1993·Granted Jun 24, 1997·54 cites·9 claims
- 0487US3945216ARefrigeration systemsSVENSKA ROTOR MASKINER AB·Filed 1974·Granted Mar 23, 1976·48 cites·44 claims
- 0585US4449573ARegenerative heat exchangersSVENSKA ROTOR MASKINER AB·Filed 1982·Granted May 22, 1984·56 cites·27 claims
- 0685US4141754AApparatus and method for cleaning the heat exchanging surfaces of the heat transfer plates of a rotary regenerative heat exchangerSVENSKA ROTOR MASKINER AB·Filed 1977·Granted Feb 27, 1979·41 cites·17 claims
- 0784US4946362ARotary screw compressor with a lift valve mounted in high pressure end wallSVENSKA ROTOR MASKINER AB·Filed 1989·Granted Aug 7, 1990·37 cites·4 claims
- 0884US4076468AMulti-stage screw compressor interconnected via communication channel in common end plateSVENSKA ROTOR MASKINER AB·Filed 1975·Granted Feb 28, 1978·42 cites·13 claims
- 0982US5018948ARotary displacement compressor with adjustable outlet port edgeSVENSKA ROTOR MASKINER AB·Filed 1988·Granted May 28, 1991·37 cites·9 claims
- 1080US6302667B1Oil-free screw rotor apparatusSVENSKA ROTOR MASKINER AB·Filed 1998·Granted Oct 16, 2001·37 cites·31 claims
- 1180US5281115ARotary screw machine having thrust balancing meansSVENSKA ROTOR MASKINER AB·Filed 1991·Granted Jan 25, 1994·41 cites·7 claims
- 1280US4005955ARotary internal combustion engine with liquid cooled pistonSVENSKA ROTOR MASKINER AB·Filed 1975·Granted Feb 1, 1977·21 cites·8 claims
- 1379US5816055ARefrigeration system anad a method for regulating the refrigeration capacity of such a systemSVENSKA ROTOR MASKINER AB·Filed 1994·Granted Oct 6, 1998·36 cites·12 claims
- 1477US5063750ARotary positive displacement compressor and refrigeration plantSVENSKA ROTOR MASKINER AB·Filed 1989·Granted Nov 12, 1991·27 cites·16 claims
- 1577US5037282ARotary screw compressor with oil drainageSVENSKA ROTOR MASKINER AB·Filed 1989·Granted Aug 6, 1991·27 cites·13 claims
- 1677US5009583AShaft seal and bearing members for a rotary screw compressorSVENSKA ROTOR MASKINER AB·Filed 1990·Granted Apr 23, 1991·40 cites·3 claims
- 1774US4678643AApparatus for catalytic cleaning of exhaust gases from a furnace systemSVENSKA ROTOR MASKINER AB·Filed 1985·Granted Jul 7, 1987·47 cites·23 claims
- 1873US4863357ARotary positive displacement machine for a compressible working fluidSVENSKA ROTOR MASKINER AB·Filed 1987·Granted Sep 5, 1989·24 cites·10 claims
- 1972US5011389ARotor for a rotary screw machineSVENSKA ROTOR MASKINER AB·Filed 1989·Granted Apr 30, 1991·22 cites·23 claims
- 2072US4597726AScrew compressor having two individually displaceable regulating slidesSVENSKA ROTOR MASKINER AB·Filed 1985·Granted Jul 1, 1986·24 cites·8 claims
- 2171US5310320ARotor for a rotary screw machine having internal member and external shell made of pressed metal powderSVENSKA ROTOR MASKINER AB·Filed 1992·Granted May 10, 1994·28 cites·16 claims
- 2271US4025362AApparatus for cleaning the heat exchanging surfaces of the heat transfer plates of rotary regenerative heat exchangersSVENSKA ROTOR MASKINER AB·Filed 1976·Granted May 24, 1977·23 cites·13 claims
- 2370US5678987ARotary screw compressor with variable thrust balancing meansSVENSKA ROTOR MASKINER AB·Filed 1994·Granted Oct 21, 1997·24 cites·12 claims
- 2470US5642629ACooled air cycle system and method for operating such a systemSVENSKA ROTOR MASKINER AB·Filed 1995·Granted Jul 1, 1997·30 cites·9 claims
- 2570US5411388ARotary screw machine with thrust balanced bearingsSVENSKA ROTOR MASKINER AB·Filed 1992·Granted May 2, 1995·29 cites·12 claims
- 2670US4758138AOil-free rotary gas compressor with injection of vaporizable liquidSVENSKA ROTOR MASKINER AB·Filed 1986·Granted Jul 19, 1988·29 cites·15 claims
- 2770US4435139AScrew rotor machine and rotor profile thereforSVENSKA ROTOR MASKINER AB·Filed 1982·Granted Mar 6, 1984·30 cites·51 claims
- 2870US3932073AScrew rotor machine with spring and fluid biased balancing pistonsSVENSKA ROTOR MASKINER AB·Filed 1974·Granted Jan 13, 1976·22 cites·8 claims
- 2968US4748831ARefrigeration plant and rotary positive displacement machineSVENSKA ROTOR MASKINER AB·Filed 1986·Granted Jun 7, 1988·33 cites·24 claims
- 3067US5707223ARotary screw compressor having a thrust balancing piston device and a method of operation thereofSVENSKA ROTOR MASKINER AB·Filed 1995·Granted Jan 13, 1998·26 cites·8 claims
- 3165US5732560ASystem and method for performing coolingSVENSKA ROTOR MASKINER AB·Filed 1995·Granted Mar 31, 1998·22 cites·36 claims
- 3265US4761124AScrew-type rotary machine having at least one rotor made of a plastics materialSVENSKA ROTOR MASKINER AB·Filed 1986·Granted Aug 2, 1988·26 cites·3 claims
- 3364US5137439AScrew rotor machine with de laval nozzle for noise reductionSVENSKA ROTOR MASKINER AB·Filed 1990·Granted Aug 11, 1992·23 cites·5 claims
- 3463US4802457AInternal combustion engine provided with a superchargerSVENSKA ROTOR MASKINER AB·Filed 1986·Granted Feb 7, 1989·18 cites·8 claims
- 3562US5727936ARotary displacement compressor with liquid circulation systemSVENSKA ROTOR MASKINER AB·Filed 1995·Granted Mar 17, 1998·30 cites·20 claims
- 3662US4915514ARotary machine equipped with a thrust balancing arrangementSVENSKA ROTOR MASKINER AB·Filed 1988·Granted Apr 10, 1990·22 cites·5 claims
- 3762US4455131AControl device in a helical screw rotor machine for regulating the capacity and the built-in volume ratio of the machineSVENSKA ROTOR MASKINER AB·Filed 1981·Granted Jun 19, 1984·26 cites·6 claims
- 3861US5192199AMachine for a gaseous mediumSVENSKA ROTOR MASKINER AB·Filed 1989·Granted Mar 9, 1993·16 cites·5 claims
- 3960US5860801ARotary screw compressor with unloading meansSVENSKA ROTOR MASKINER AB·Filed 1995·Granted Jan 19, 1999·16 cites·12 claims
- 4060US4923374AMethod for producing pressure pulses in a mass of gas and a device for performing the methodSVENSKA ROTOR MASKINER AB·Filed 1987·Granted May 8, 1990·27 cites·23 claims
- 4160US4301858AAdjusting means of rotary regenerative sector plate heat exchangersSVENSKA ROTOR MASKINER AB·Filed 1980·Granted Nov 24, 1981·22 cites·7 claims
- 4257US4953629APack of heat transfer platesSVENSKA ROTOR MASKINER AB·Filed 1988·Granted Sep 4, 1990·21 cites·2 claims
- 4357US3973527ARotary internal combustion engineSVENSKA ROTOR MASKINER AB·Filed 1975·Granted Aug 10, 1976·10 cites·13 claims
- 4455US6506027B1Two stage compressor and a method for cooling such a compressorSVENSKA ROTOR MASKINER AB·Filed 1999·Granted Jan 14, 2003·13 cites·20 claims
- 4555US4758136AScrew compressor lubrication channel for lubrication of a rotor bearingSVENSKA ROTOR MASKINER AB·Filed 1986·Granted Jul 19, 1988·15 cites·4 claims
- 4654US5411387ARotary displacement compressor having adjustable internal volume ratio and a method for regulating the internal volume ratioSVENSKA ROTOR MASKINER AB·Filed 1992·Granted May 2, 1995·19 cites·14 claims
- 4754US4084405ARefrigerating systemSVENSKA ROTOR MASKINER AB·Filed 1976·Granted Apr 18, 1978·21 cites·11 claims
- 4853US10451065B2Pair of co-operating screw rotorsSVENSKA ROTOR MASKINER AB·Filed 2014·Granted Oct 22, 2019·0 cites·20 claims
- 4953US6695602B2Bacterial growth inhibition in a circulation system comprising a compressorSVENSKA ROTOR MASKINER AB·Filed 2001·Granted Feb 24, 2004·5 cites·26 claims
- 5052US6551084B2Screw rotor machine having means for axially biasing at least one of the rotorsSVENSKA ROTOR MASKINER AB·Filed 2002·Granted Apr 22, 2003·7 cites·20 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when SVENSKA ROTOR MASKINER AB files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →