Inventor · disambiguated record
Leif Johansson
Also filed as: JOHANSSON LEIF · JOHANSSON LEIF A · JOHANSSON LEIF A T · JOHANSSON LEIF ALBIN
28 granted patents·9 pending applications·654 citations·filing 1975–2024
97Inventor score
Top patents by PatentIndex Score
37 records- 0194US9887780B2Chip-based advanced modulation format transmitterFREEDOM PHOTONICS LLC·Filed 2016·Granted Feb 6, 2018·11 cites·13 claims
- 0294US8718486B2Chip-based advanced modulation format transmitterFREEDOM PHOTONICS LLC·Filed 2013·Granted May 6, 2014·19 cites·12 claims
- 0394US8401399B2Chip-based advanced modulation format transmitterBARTON JONATHON·Filed 2010·Granted Mar 19, 2013·29 cites·21 claims
- 0493US10355451B2Laser with sampled grating distributed bragg reflectorFREEDOM PHOTONICS LLC·Filed 2018·Granted Jul 16, 2019·9 cites·20 claims
- 0593US9344196B1Integrated interferometric optical transmitterFREEDOM PHOTONICS LLC·Filed 2013·Granted May 17, 2016·19 cites·29 claims
- 0693US9270380B2Chip-based advanced modulation format transmitterFREEDOM PHOTONICS LLC·Filed 2014·Granted Feb 23, 2016·13 cites·20 claims
- 0793US4893322AFilm changerMEDRAD INC·Filed 1985·Granted Jan 9, 1990·56 cites·43 claims
- 0891US9941971B1Integrated interferometric optical transmitterFREEDOM PHOTONICS LLC·Filed 2016·Granted Apr 10, 2018·9 cites·20 claims
- 0989US5317619AFilm changerMEDRAD INC·Filed 1993·Granted May 31, 1994·34 cites·24 claims
- 1088US5042056AFilm changerMEDRAD INC·Filed 1990·Granted Aug 20, 1991·31 cites·36 claims
- 1186US4202259AConvection ovenTIPE REVENT AB·Filed 1978·Granted May 13, 1980·56 cites·10 claims
- 1286US4029463AMethod for baking food productsTIPE REVENT AB·Filed 1975·Granted Jun 14, 1977·67 cites·6 claims
- 1378US4252055ATunnel-chamber baking ovenTIPE REVEN AB·Filed 1979·Granted Feb 24, 1981·44 cites·9 claims
- 1476US4571260AMethod for recovering the metal values from materials containing tin and/or zincBOLIDEN AB·Filed 1985·Granted Feb 18, 1986·25 cites·18 claims
- 1574US3954053ARack ovenTIPE REVENT AB·Filed 1975·Granted May 4, 1976·41 cites·2 claims
- 1671USD544748SPan stand3P PROJEKT AB·Filed 2006·Granted Jun 19, 2007·21 cites·1 claims
- 1770US5930914AMethod and device for drying a moving web materialINFRAROEDTEKNIK AB·Filed 1996·Granted Aug 3, 1999·25 cites·20 claims
- 1867US5193594AArrangement for injecting additivesNORAPP JON H ANDRESEN·Filed 1992·Granted Mar 16, 1993·43 cites·7 claims
- 1965US5133391AMethod and arrangement for injecting additivesNORAPP JOH H ANDRESEN·Filed 1991·Granted Jul 28, 1992·34 cites·5 claims
- 2062US4371287ASurface trowelling deviceJOHANSSON LEIF·Filed 1980·Granted Feb 1, 1983·23 cites·8 claims
- 2159US2025246871A1Packaged high-q reference cavity systemBAE SYS INF & ELECT SYS INTEG·Filed 2024·Application pending·0 cites
- 2258US12506320B2Designs for lateral current control in optical amplifiers and lasersFREEDOM PHOTONICS LLC·Filed 2022·Granted Dec 23, 2025·0 cites·17 claims
- 2358US2025244635A1Soliton generation using crystalline whispering gallery mode resonatorsBAE SYS INF & ELECT SYS INTEG·Filed 2024·Application pending·0 cites
- 2454US2023072926A1Multiwavelength optical sourcesFREEDOM PHOTONICS LLC·Filed 2022·Application pending·0 cites
- 2552US4613365AMethod for recovering precious metalsBOLIDEN AB·Filed 1985·Granted Sep 23, 1986·9 cites·16 claims
- 2652US2024310590A1Semiconductor laser chip for photonic wire bondingFREEDOM PHOTONICS LLC·Filed 2024·Application pending·0 cites
- 2752US2025244535A1Photonic wirebond loopback evanescent couplerBAE SYS INF & ELECT SYS INTEG·Filed 2024·Application pending·0 cites
- 2849US2022268041A1An adjustment system, an adjustable support, a method of orienting an element, and use of such systemI & P I NORR AB·Filed 2020·Application pending·0 cites
- 2947US8710246B2Substituted thiophene pentamersÅSBERG PETER·Filed 2009·Granted Apr 29, 2014·0 cites·8 claims
- 3047US5161517ASteam generator for a convection ovenREVENT INT AB·Filed 1991·Granted Nov 10, 1992·11 cites·15 claims
- 3144US4058329AConnecting piece for mounting a ventilation element in an opening in a ceiling or wallSVENSKA FLAEKTFABRIKEN AB·Filed 1976·Granted Nov 15, 1977·10 cites·8 claims
- 3240USD263595SBaking oven or similar articleTIPE REVENT AB·Filed 1979·Granted Mar 30, 1982·2 cites·1 claims
- 3340US2005102777A1Unit and arrangement for the treatment of vehicles, where an integrated unit is usedFiled 2003·Application pending·0 cites
- 3440US2008077343A1Implementation of coded optical time-domain reflectometryJOHANSSON LEIF A·Filed 2007·Application pending·0 cites
- 3537US4978554AMargarine, spreadable at refrigeration temperature, and having a very low fat content and method of manufacturing sameL & L INTERNATIONAL SWEDEN AKT·Filed 1988·Granted Dec 18, 1990·9 cites·26 claims
- 3637US4608083AMethod for recovering the valuable metal content of contaminated copper raw materialBOLIDEN AB·Filed 1985·Granted Aug 26, 1986·4 cites·14 claims
- 3736US2013156061A1Arrangement for Generating Fast Wavelength-Switched Optical SignalJOHANSSON LEIF·Filed 2012·Application pending·0 cites
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