Inventor · disambiguated record
Martin Hellsten
Also filed as: HELLSTEN MARTIN · HELLSTEN MARTIN EDVIN
16 granted patents·4 pending applications·210 citations·filing 1975–2014
93Inventor score
Top patents by PatentIndex Score
20 records- 0184US5339855AUse of alkoxylated alkanolamide as friction-reducing agentBEROL NOBEL AB·Filed 1993·Granted Aug 23, 1994·34 cites·11 claims
- 0280US5902784AUse of a betaine surfactant together with an anionic surfactant as a drag-reducing agentAKZO NOBEL NV·Filed 1996·Granted May 11, 1999·35 cites·16 claims
- 0369US4830739AProcess and composition for the froth flotation beneficiation of iron minerals from iron oresBEROL KEMI AB·Filed 1988·Granted May 16, 1989·27 cites·2 claims
- 0466US8375971B2Use of a zwitterionic surfactant together with an anionic ether-containing surfactant as a drag-reducing agentAKZO NOBEL NV·Filed 2011·Granted Feb 19, 2013·1 cites·11 claims
- 0566US4732667AProcess and composition for the froth flotation beneficiation of iron minerals from iron oresBEROL KEMI AB·Filed 1985·Granted Mar 22, 1988·25 cites·26 claims
- 0664US5700766AUse of an amphoteric surfactant as a friction-reducing agentBEROL NOBEL AB·Filed 1994·Granted Dec 23, 1997·14 cites·9 claims
- 0764US4038102AAsphalt compositions having improved adhesion to aggregateMO OCH DOMSJOE AB·Filed 1975·Granted Jul 26, 1977·12 cites·3 claims
- 0857US8821754B2Additive for preserving the fluidity of fluids containing gas hydratesHELLSTEN MARTIN·Filed 2007·Granted Sep 2, 2014·1 cites·7 claims
- 0957US5979479AUse of alkoxylated alkanolamide together with alkoxylated alcohol as a friction-reducing agentAKZO NOBEL NV·Filed 1996·Granted Nov 9, 1999·16 cites·12 claims
- 1056US4828687AFroth flotation process and collector thereforBEROL KEMI AB·Filed 1985·Granted May 9, 1989·15 cites·6 claims
- 1155US2014256998A1Additive for preserving the fluidity of fluids containing gas hydratesAKZO NOBEL NV·Filed 2014·Application pending·0 cites
- 1254US8653009B2Method for preventing the formation of calcium carboxylate deposits in the dewatering process for crude oil/water streamsHELLSTEN MARTIN·Filed 2008·Granted Feb 18, 2014·1 cites·18 claims
- 1352US5911236AAlkoxylated alkanolamide together with an ionic surfactant as friction-reducing agentAKZO NOBEL NV·Filed 1995·Granted Jun 15, 1999·14 cites·9 claims
- 1451US2013053285A1Drag-reducing agent for use in injection water at oil recoveryAKZO NOBEL NV·Filed 2012·Application pending·0 cites
- 1546US7987866B2Zwitterionic surfacant together with an anionic ether-containing surfactant as a drag-reducing agentAKZO NOBEL NV·Filed 2002·Granted Aug 2, 2011·1 cites·8 claims
- 1643US5183476AEthanol fuel and its use as a diesel fuelBEROL NOBEL STENUNGSUND AB·Filed 1989·Granted Feb 2, 1993·6 cites·17 claims
- 1735US4876122APackage capable of preventing foam formation, method of manufacturing such a package, and antifoaming agentBEROL KEMI AB·Filed 1988·Granted Oct 24, 1989·4 cites·14 claims
- 1834US2005227876A1Drag-reducing agent for use in injection water at oil recoveryHELLSTEN MARTIN·Filed 2003·Application pending·0 cites
- 1933US2004069342A1Drag reduction of a heat-distributing water-based liquid contaning large amounts of anti-freezeFiled 2002·Application pending·0 cites
- 2031US4795578AProcess and composition for the froth flotation beneficiation of iron minerals from iron oresBEROL KEMI AB·Filed 1987·Granted Jan 3, 1989·4 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →