Inventor · disambiguated record
Per Harald Collin
Also filed as: COLLIN PER · COLLIN PER H · COLLIN PER HARALD · HIRSCH MARTIN
26 granted patents·557 citations·filing 1973–1996
97Inventor score
Top patents by PatentIndex Score
26 records- 0198US4165717AProcess for burning carbonaceous materialsMETALLGESELLSCHAFT AG·Filed 1977·Granted Aug 28, 1979·128 cites·20 claims
- 0295US4026679AApparatus for and process of converting carbonaceous materials containing sulphur to an essentially sulphur-free combustible gasSTORA KOPPARBERGS BERGSLAGS AB·Filed 1976·Granted May 31, 1977·62 cites·7 claims
- 0394US4073642AMethod for reducing material containing iron oxidesSTORA KOPPARBERGS BERGSLAGS AB·Filed 1975·Granted Feb 14, 1978·58 cites·12 claims
- 0486US5578092AMethod and a device for producing fuelsFiled 1993·Granted Nov 26, 1996·46 cites·19 claims
- 0581US4374663AMethod and apparatus for reducing an iron oxide material in a fluidized bedSTORA KOPPARBERGS BERGSLAGS AB·Filed 1981·Granted Feb 22, 1983·26 cites·8 claims
- 0681US3947621AFurnace and method for reducing metal oxides to molten metalASEA AB·Filed 1975·Granted Mar 30, 1976·22 cites·12 claims
- 0780US4094665AMethod for simultaneous combined production of electrical energy and crude ironSTORA KOPPARBERGS BERGSLAGS AB·Filed 1977·Granted Jun 13, 1978·21 cites·3 claims
- 0875US3985544AMethod for simultaneous combined production of electrical energy and crude ironSTORA KOPPARBERGS BERGSLAGS AB·Filed 1974·Granted Oct 12, 1976·18 cites·6 claims
- 0971US4359212AApparatus for reducing finely divided iron oxide materialSTORA KOPPARBERGS BERGSLAGS AB·Filed 1980·Granted Nov 16, 1982·18 cites·5 claims
- 1067US5546435AFission product leak detection in a pressurized-water reactorASEA ATOM AB·Filed 1994·Granted Aug 13, 1996·18 cites·6 claims
- 1166US3932173AInductially heated gas lift pump action method for melt reductionASEA AB·Filed 1973·Granted Jan 13, 1976·12 cites·2 claims
- 1264US4084958AMethod of reducing finely grained material containing iron oxides in a fluid bedSTORA KOPPARBERGS BERGSLAGS AB·Filed 1977·Granted Apr 18, 1978·12 cites·4 claims
- 1363US4079185AMethod and apparatus for the melt reduction of iron oxidesASEA AB·Filed 1976·Granted Mar 14, 1978·10 cites·6 claims
- 1461US4080511AApparatus for the melt reduction of fine-grained iron oxide materialASEA AB·Filed 1976·Granted Mar 21, 1978·9 cites·1 claims
- 1558US4042376AMethod for carrying out endothermic reduction processes in a circulating fluid bed and an apparatus thereforSTORA KOPPARBERGS BERGSLAGS AB·Filed 1976·Granted Aug 16, 1977·12 cites·3 claims
- 1655US4033562AFurnace for melting solid ferrous piecesASEA AB·Filed 1974·Granted Jul 5, 1977·11 cites·3 claims
- 1754US4205980AProcess for removing sulphur from crude ironSTORA KOPPARBERGS BERGSLAGS AB·Filed 1978·Granted Jun 3, 1980·4 cites·4 claims
- 1854US4131452AMethod for direct manufacture of crude steelSTORA KOPPARBERGS BERGSLAGS AB·Filed 1977·Granted Dec 26, 1978·8 cites·5 claims
- 1951US4000060AMagnetic separator for hot mixtures containing magnetic componentsASEA AB·Filed 1975·Granted Dec 28, 1976·13 cites·6 claims
- 2047US4416689AProcess for the manufacture of crude iron and energy-rich gasesASEA AB·Filed 1981·Granted Nov 22, 1983·5 cites·4 claims
- 2146US4181812AIron oxide melt reduction furnace and methodASEA AB·Filed 1978·Granted Jan 1, 1980·6 cites·2 claims
- 2242US5241825AProcess for generating electric powerCOLLIN PER·Filed 1990·Granted Sep 7, 1993·20 cites·21 claims
- 2337US4394163AProcess for the manufacture of crude iron and synthesis gasASEA AB·Filed 1981·Granted Jul 19, 1983·2 cites·7 claims
- 2436US5987874AMethod and apparatus for power generation based on char and a fluidized bed reactorNYKOMB SYNERGETICS TECHNOLOGY·Filed 1996·Granted Nov 23, 1999·10 cites·14 claims
- 2533US4098604AMethod for reduction in a fluid bed of fine grained material containing iron oxideSTORA KOPPARBERG BERGSLAGS AKT·Filed 1976·Granted Jul 4, 1978·4 cites·7 claims
- 2624US5251691ADevice for the indirect heating of airCOLLIN PER·Filed 1990·Granted Oct 12, 1993·2 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Per Harald Collin files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →