Geertsen; Robert J.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Geertsen; Robert J..The latest application filed is for "stirred bed reactor".

Company Profile

1.9.18

Geertsen; Robert J. - Spokane WA
Geertsen; Robert J. - Eltopia WA
Geertsen; Robert J. - Pasco WA
Geertsen; Robert J. - Moses Lake WA
Geertsen; Robert J. - Clackamas OR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Stirred Bed Reactor App 20200240013 - Geertsen; Robert J.	2020-07-30
Feeder App 20200048007 - Geertsen; Robert J.	2020-02-13
System for reducing agglomeration during annealing of flowable, finely divided solids Grant 10,407,310 - Geertsen , et al. Sept	2019-09-10
Tumbling device for the separation of granular polysilicon and polysilicon powder Grant 10,287,171 - Geertsen	2019-05-14
Humidified Sweep Gas For Dedusting Process App 20180265365 - Geertsen; Robert J.	2018-09-20
Oscillatory feeder Grant 10,040,637 - Geertsen August 7, 2	2018-08-07
Control Of Silicon Oxide Off-gas To Prevent Fouling Of Granular Silicon Annealing System App 20180208472 - Geertsen; Robert J. ; et al.	2018-07-26
System For Reducing Agglomeration During Annealing Of Flowable, Finely Divided Solids App 20180208471 - Geertsen; Robert J. ; et al.	2018-07-26
Segmented Tubes Used In Annealing Of High Purity Silicon Granules App 20180213603 - Miller; Matthew J. ; et al.	2018-07-26
Method For Annealing Granular Silicon With Agglomeration Control App 20180208470 - Miller; Matthew J. ; et al.	2018-07-26
Oscillatory Feeder App 20180111764 - Geertsen; Robert J.	2018-04-26
Humidified Sweep Gas For Dedusting Process App 20170320745 - Geertsen; Robert J.	2017-11-09
Method and apparatus for separating fine particulate material from a mixture of coarse particulate material and fine particulate material Grant 9,682,404 - Geertsen June 20, 2	2017-06-20
Apparatus and method for silicon powder management Grant 9,440,262 - Geertsen September 13, 2	2016-09-13
Apparatus And Method For Silicon Powder Management App 20160129478 - Geertsen; Robert J.	2016-05-12
Fluid bed reactor Grant 9,023,425 - Osborne , et al. May 5, 2	2015-05-05
Polysilicon Transportation Device And A Reactor System And Method Of Polycrystalline Silicon Production Therewith App 20150104369 - Geertsen; Robert J.	2015-04-16
Container And Method Of Mitigating Metal-contact Contamination Of Polysilicon App 20140131246 - Geertsen; Robert J. ; et al.	2014-05-15
Reactor System And Method Of Polycrystalline Silicon Production Therewith App 20140023578 - Geertsen; Robert J.	2014-01-23
Fluid Bed Reactor App 20120263874 - Osborne; E. Wayne ; et al.	2012-10-18
Feedstock Melting And Casting System And Process App 20120159993 - Geertsen; Robert J. ; et al.	2012-06-28
Fluid bed reactor Grant 8,075,692 - Osborne , et al. December 13, 2	2011-12-13
Fluid Bed Reactor App 20110117729 - Osborne; E. Wayne ; et al.	2011-05-19
Solidification Of Molten Material Over A Moving Bed Of Divided Solid Material App 20100170653 - Geertsen; Robert J.	2010-07-08
Casting pattern seam tool and method for its use Grant 6,652,794 - Geertsen , et al. November 25, 2	2003-11-25
Casting pattern seam tool and method for its use App 20020108717 - Geertsen, Robert J. ; et al.	2002-08-15

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