Concord, Massachusetts
United States
8
2021-09-16
The entities that hold a legal rights for patent applications filed by inventor Jonczyk Ralf:
Ralf Jonczyk from Concord, US has applied for patents for these inventions. The list has both pending applications and granted patents:
HIGH TEMPERATURE ACID ETCH FOR SILICON
#2 | 2019-12-26Methods for creating a semiconductor wafer having profiled doping and wafers and solar cell components having a profiled field, such as drift and back surface
#3 | 2018-05-03Method for maintaining contained volume of molten material from which material is depleted and replenished
#4 | 2018-01-18Methods for creating a semiconductor wafer having profiled doping and wafers and solar cell components having a profiled field, such as drift and back surface
#5 | 2017-02-23Methods and apparati for making thin semi-conductor wafers with locally controlled regions that are relatively thicker than other regions and such wafers
#6 | 2014-08-07Apparati for fabricating thin semiconductor bodies from molten material
#7 | 2014-04-24Making semiconductor bodies from molten material using a free-standing interposer sheet
#8 | 2013-02-14Selected methods for efficiently making thin semiconductor bodies from molten material for solar cells and the like
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