Search

Frederick F. Krass

Supervisory Patent Examiner (ID: 1957, Phone: (571)272-0580 , Office: P/1612 )

Most Active Art Unit
1614
Art Unit(s)
1614, 1503, 1612, 2899, 1501
Total Applications
2178
Issued Applications
1357
Pending Applications
298
Abandoned Applications
523

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17044801 [patent_doc_number] => 11097969 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-08-24 [patent_title] => Membrane separation method and device provided with particle sorting device [patent_app_type] => utility [patent_app_number] => 16/473729 [patent_app_country] => US [patent_app_date] => 2017-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 4390 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16473729 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/473729
Membrane separation method and device provided with particle sorting device Mar 30, 2017 Issued
Array ( [id] => 15356815 [patent_doc_number] => 10527014 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-01-07 [patent_title] => Demount-free electrical cleanable filter [patent_app_type] => utility [patent_app_number] => 15/469605 [patent_app_country] => US [patent_app_date] => 2017-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2449 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 269 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15469605 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/469605
Demount-free electrical cleanable filter Mar 26, 2017 Issued
Array ( [id] => 11995340 [patent_doc_number] => 20170299495 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-10-19 [patent_title] => 'SYSTEM AND METHOD FOR CAPTURING AND RETRIEVING BIOLOGICAL PARTICLES AND CAPTURING DEVICE USED IN THE SAME' [patent_app_type] => utility [patent_app_number] => 15/469111 [patent_app_country] => US [patent_app_date] => 2017-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3246 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15469111 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/469111
System and method for capturing and retrieving biological particles and capturing device used in the same Mar 23, 2017 Issued
Array ( [id] => 15100161 [patent_doc_number] => 10471376 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-11-12 [patent_title] => Filter assembly [patent_app_type] => utility [patent_app_number] => 15/467700 [patent_app_country] => US [patent_app_date] => 2017-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2866 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15467700 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/467700
Filter assembly Mar 22, 2017 Issued
Array ( [id] => 11970145 [patent_doc_number] => 20170274300 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-09-28 [patent_title] => 'Dirt Separator' [patent_app_type] => utility [patent_app_number] => 15/464697 [patent_app_country] => US [patent_app_date] => 2017-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 4940 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15464697 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/464697
Dirt Separator Mar 20, 2017 Abandoned
Array ( [id] => 13340503 [patent_doc_number] => 20180221791 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-09 [patent_title] => FILTER FRAME, FILTER CARTRIDGE, AND ASSEMBLING METHOD OF THE FILTER CARTRIDGE [patent_app_type] => utility [patent_app_number] => 15/453894 [patent_app_country] => US [patent_app_date] => 2017-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4319 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15453894 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/453894
Filter frame, filter cartridge, and assembling method of the filter cartridge Mar 7, 2017 Issued
Array ( [id] => 17161992 [patent_doc_number] => 11148077 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-10-19 [patent_title] => Composite filter cartridge [patent_app_type] => utility [patent_app_number] => 16/066741 [patent_app_country] => US [patent_app_date] => 2017-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2469 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16066741 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/066741
Composite filter cartridge Mar 1, 2017 Issued
Array ( [id] => 11959801 [patent_doc_number] => 20170263953 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-09-14 [patent_title] => 'ION EXCHANGER' [patent_app_type] => utility [patent_app_number] => 15/445114 [patent_app_country] => US [patent_app_date] => 2017-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5657 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15445114 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/445114
Ion exchanger Feb 27, 2017 Issued
Array ( [id] => 11977951 [patent_doc_number] => 20170282105 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-10-05 [patent_title] => 'WATER PURIFYING APPARATUS AND REFRIGERATOR' [patent_app_type] => utility [patent_app_number] => 15/445525 [patent_app_country] => US [patent_app_date] => 2017-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 9145 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15445525 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/445525
Water purifying apparatus and refrigerator Feb 27, 2017 Issued
Array ( [id] => 13824607 [patent_doc_number] => 20190015788 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-17 [patent_title] => FLAT-SHEET SEPARATION MEMBRANE ELEMENT, ELEMENT UNIT, FLAT-SHEET SEPARATION MEMBRANE MODULE, AND OPERATION METHOD FOR FLAT-SHEET SEPARATION MEMBRANE MODULE [patent_app_type] => utility [patent_app_number] => 16/080467 [patent_app_country] => US [patent_app_date] => 2017-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20834 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16080467 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/080467
FLAT-SHEET SEPARATION MEMBRANE ELEMENT, ELEMENT UNIT, FLAT-SHEET SEPARATION MEMBRANE MODULE, AND OPERATION METHOD FOR FLAT-SHEET SEPARATION MEMBRANE MODULE Feb 27, 2017 Abandoned
Array ( [id] => 13210523 [patent_doc_number] => 10119624 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-11-06 [patent_title] => Clip filter for hydraulic valve and hydraulic valve with clip filter [patent_app_type] => utility [patent_app_number] => 15/442680 [patent_app_country] => US [patent_app_date] => 2017-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4027 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 295 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15442680 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/442680
Clip filter for hydraulic valve and hydraulic valve with clip filter Feb 25, 2017 Issued
Array ( [id] => 14211479 [patent_doc_number] => 20190118124 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-04-25 [patent_title] => HYDROGEN WATER AND MAGNETIC WATER GENERATING WATER BOTTLE [patent_app_type] => utility [patent_app_number] => 16/068319 [patent_app_country] => US [patent_app_date] => 2017-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6305 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 446 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16068319 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/068319
HYDROGEN WATER AND MAGNETIC WATER GENERATING WATER BOTTLE Feb 22, 2017 Abandoned
Array ( [id] => 11970151 [patent_doc_number] => 20170274304 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-09-28 [patent_title] => 'WATER PURIFYING APPARATUS AND FILTER STRUCTURE' [patent_app_type] => utility [patent_app_number] => 15/439525 [patent_app_country] => US [patent_app_date] => 2017-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 27 [patent_no_of_words] => 15862 [patent_no_of_claims] => 37 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15439525 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/439525
Water purifying apparatus and filter structure Feb 21, 2017 Issued
Array ( [id] => 11935530 [patent_doc_number] => 20170239679 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-08-24 [patent_title] => 'SYSTEM AND METHOD HAVING FILTER DISPOSED IN FLUID SUPPLY CUP' [patent_app_type] => utility [patent_app_number] => 15/432734 [patent_app_country] => US [patent_app_date] => 2017-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 7658 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15432734 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/432734
SYSTEM AND METHOD HAVING FILTER DISPOSED IN FLUID SUPPLY CUP Feb 13, 2017 Abandoned
Array ( [id] => 11937237 [patent_doc_number] => 20170241387 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-08-24 [patent_title] => 'Filter unit, filter system, and motor vehicle with filter system' [patent_app_type] => utility [patent_app_number] => 15/431024 [patent_app_country] => US [patent_app_date] => 2017-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4913 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15431024 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/431024
Filter unit, filter system, and motor vehicle with filter system Feb 12, 2017 Abandoned
Array ( [id] => 13355241 [patent_doc_number] => 20180229160 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-16 [patent_title] => SELF CLEANING POOL CLEANER [patent_app_type] => utility [patent_app_number] => 15/429169 [patent_app_country] => US [patent_app_date] => 2017-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14733 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -56 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15429169 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/429169
Self cleaning pool cleaner Feb 9, 2017 Issued
Array ( [id] => 13871323 [patent_doc_number] => 20190032002 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-31 [patent_title] => CELL SEPARATION DEVICE AND USE OF A FLOW FORMATION FOR THE CELL SEPARATION DEVICE [patent_app_type] => utility [patent_app_number] => 16/077588 [patent_app_country] => US [patent_app_date] => 2017-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6539 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16077588 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/077588
Cell separation device and use of a flow formation for the cell separation device Feb 8, 2017 Issued
Array ( [id] => 11626232 [patent_doc_number] => 20170136421 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-05-18 [patent_title] => 'ULTRAFILTRATION MEMBRANES AND METHODS OF MAKING' [patent_app_type] => utility [patent_app_number] => 15/421103 [patent_app_country] => US [patent_app_date] => 2017-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 10819 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15421103 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/421103
Ultrafiltration membranes and methods of making Jan 30, 2017 Issued
Array ( [id] => 15191825 [patent_doc_number] => 10493385 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-12-03 [patent_title] => J-hook filter assembly [patent_app_type] => utility [patent_app_number] => 15/402930 [patent_app_country] => US [patent_app_date] => 2017-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4502 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15402930 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/402930
J-hook filter assembly Jan 9, 2017 Issued
Array ( [id] => 11588578 [patent_doc_number] => 20170112989 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-04-27 [patent_title] => 'ENCLOSURE FOR A PORTABLE HEMODIALYSIS SYSTEM' [patent_app_type] => utility [patent_app_number] => 15/399895 [patent_app_country] => US [patent_app_date] => 2017-01-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 29 [patent_figures_cnt] => 29 [patent_no_of_words] => 21213 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15399895 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/399895
Enclosure for a portable hemodialysis system Jan 5, 2017 Issued
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