Search

Igor Kershteyn

Examiner (ID: 16203, Phone: (571)272-4817 , Office: P/3745 )

Most Active Art Unit
3745
Art Unit(s)
3745
Total Applications
2781
Issued Applications
2523
Pending Applications
44
Abandoned Applications
227

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18762381 [patent_doc_number] => 11812758 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-11-14 [patent_title] => Plant extract compositions and methods of preparation thereof [patent_app_type] => utility [patent_app_number] => 17/515201 [patent_app_country] => US [patent_app_date] => 2021-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 20658 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17515201 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/515201
Plant extract compositions and methods of preparation thereof Oct 28, 2021 Issued
Array ( [id] => 18830717 [patent_doc_number] => 20230399241 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-14 [patent_title] => PROCESS FOR REMOVING CYANIDE FROM A CYANIDE-BEARING AQUEOUS FLUID [patent_app_type] => utility [patent_app_number] => 18/250571 [patent_app_country] => US [patent_app_date] => 2021-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14631 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18250571 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/250571
PROCESS FOR REMOVING CYANIDE FROM A CYANIDE-BEARING AQUEOUS FLUID Oct 24, 2021 Pending
Array ( [id] => 18948041 [patent_doc_number] => 11891322 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-02-06 [patent_title] => Mobile cleaning and water treatment system [patent_app_type] => utility [patent_app_number] => 17/507955 [patent_app_country] => US [patent_app_date] => 2021-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 9423 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17507955 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/507955
Mobile cleaning and water treatment system Oct 21, 2021 Issued
Array ( [id] => 17563365 [patent_doc_number] => 20220127514 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-28 [patent_title] => CALCITE SCALE CONTROL AGENT FOR GEOTHERMAL WELLS [patent_app_type] => utility [patent_app_number] => 17/506905 [patent_app_country] => US [patent_app_date] => 2021-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5603 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 21 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17506905 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/506905
Calcite scale control agent for geothermal wells Oct 20, 2021 Issued
Array ( [id] => 17385428 [patent_doc_number] => 20220033280 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-03 [patent_title] => Water Dissociation System [patent_app_type] => utility [patent_app_number] => 17/505253 [patent_app_country] => US [patent_app_date] => 2021-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13310 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 22 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17505253 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/505253
Water dissociation system Oct 18, 2021 Issued
Array ( [id] => 20438537 [patent_doc_number] => 12509364 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-30 [patent_title] => Device and method for monitoring a softening unit for water [patent_app_type] => utility [patent_app_number] => 18/248890 [patent_app_country] => US [patent_app_date] => 2021-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18248890 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/248890
Device and method for monitoring a softening unit for water Oct 13, 2021 Issued
Array ( [id] => 20438537 [patent_doc_number] => 12509364 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-30 [patent_title] => Device and method for monitoring a softening unit for water [patent_app_type] => utility [patent_app_number] => 18/248890 [patent_app_country] => US [patent_app_date] => 2021-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18248890 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/248890
Device and method for monitoring a softening unit for water Oct 13, 2021 Issued
Array ( [id] => 19410866 [patent_doc_number] => 12076661 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-03 [patent_title] => Managing solvent associated with a field flow fractionator [patent_app_type] => utility [patent_app_number] => 17/502007 [patent_app_country] => US [patent_app_date] => 2021-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3646 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17502007 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/502007
Managing solvent associated with a field flow fractionator Oct 13, 2021 Issued
Array ( [id] => 18778101 [patent_doc_number] => 11819781 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-11-21 [patent_title] => Device for solid phase extraction and method for use thereof [patent_app_type] => utility [patent_app_number] => 17/500460 [patent_app_country] => US [patent_app_date] => 2021-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 23281 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17500460 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/500460
Device for solid phase extraction and method for use thereof Oct 12, 2021 Issued
Array ( [id] => 17643175 [patent_doc_number] => 20220170913 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-02 [patent_title] => Method for Processing Blood Sample [patent_app_type] => utility [patent_app_number] => 17/498856 [patent_app_country] => US [patent_app_date] => 2021-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15421 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17498856 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/498856
Method for Processing Blood Sample Oct 11, 2021 Abandoned
Array ( [id] => 20386470 [patent_doc_number] => 12486186 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-02 [patent_title] => Process of using demineralized water for chlorate reduction in on-site brine electrochlorination systems [patent_app_type] => utility [patent_app_number] => 18/031144 [patent_app_country] => US [patent_app_date] => 2021-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 20 [patent_no_of_words] => 4446 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18031144 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/031144
Process of using demineralized water for chlorate reduction in on-site brine electrochlorination systems Oct 7, 2021 Issued
Array ( [id] => 17505744 [patent_doc_number] => 20220098847 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-31 [patent_title] => DIRECT GREASE AND/OR SOLIDS COLLECTION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/491139 [patent_app_country] => US [patent_app_date] => 2021-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3223 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17491139 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/491139
Direct grease and/or solids collection system Sep 29, 2021 Issued
Array ( [id] => 17342304 [patent_doc_number] => 20220008635 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-13 [patent_title] => METHODS AND APPARATUSES USING UREA PERMSELECTIVE DIFFUSION THROUGH CHARGED MEMBRANES [patent_app_type] => utility [patent_app_number] => 17/486390 [patent_app_country] => US [patent_app_date] => 2021-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14374 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17486390 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/486390
Methods and apparatuses using urea permselective diffusion through charged membranes Sep 26, 2021 Issued
Array ( [id] => 18922781 [patent_doc_number] => 20240025785 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-25 [patent_title] => PRODUCTION DEVICE FOR PH/REDOX POTENTIAL-ADJUSTED WATER [patent_app_type] => utility [patent_app_number] => 18/026787 [patent_app_country] => US [patent_app_date] => 2021-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7094 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18026787 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/026787
PRODUCTION DEVICE FOR PH/REDOX POTENTIAL-ADJUSTED WATER Sep 21, 2021 Pending
Array ( [id] => 17460884 [patent_doc_number] => 20220074189 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-10 [patent_title] => Stormwater Biofiltration System and Method [patent_app_type] => utility [patent_app_number] => 17/480110 [patent_app_country] => US [patent_app_date] => 2021-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8078 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17480110 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/480110
Stormwater biofiltration system and method Sep 19, 2021 Issued
Array ( [id] => 19291614 [patent_doc_number] => 12030961 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-07-09 [patent_title] => Method for removing organic solvent from starch hemostatic microspheres [patent_app_type] => utility [patent_app_number] => 17/479586 [patent_app_country] => US [patent_app_date] => 2021-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2576 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [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] => 17479586 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/479586
Method for removing organic solvent from starch hemostatic microspheres Sep 19, 2021 Issued
Array ( [id] => 19638014 [patent_doc_number] => 12168614 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-17 [patent_title] => Amorphous carbons for phosphate removal and methods thereof [patent_app_type] => utility [patent_app_number] => 17/476891 [patent_app_country] => US [patent_app_date] => 2021-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 104 [patent_figures_cnt] => 139 [patent_no_of_words] => 18557 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17476891 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/476891
Amorphous carbons for phosphate removal and methods thereof Sep 15, 2021 Issued
Array ( [id] => 18253307 [patent_doc_number] => 20230080346 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-16 [patent_title] => SYSTEMS, METHODS, AND DEVICES FOR REMOVING CONTAMINANTS FROM STORMWATER [patent_app_type] => utility [patent_app_number] => 17/477274 [patent_app_country] => US [patent_app_date] => 2021-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4308 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17477274 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/477274
Systems, methods, and devices for removing contaminants from stormwater Sep 15, 2021 Issued
Array ( [id] => 18830725 [patent_doc_number] => 20230399249 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-14 [patent_title] => WATER TREATMENT METHOD AND WATER TREATMENT APPARATUS [patent_app_type] => utility [patent_app_number] => 18/032248 [patent_app_country] => US [patent_app_date] => 2021-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14570 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18032248 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/032248
WATER TREATMENT METHOD AND WATER TREATMENT APPARATUS Sep 14, 2021 Pending
Array ( [id] => 18725523 [patent_doc_number] => 20230339690 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-26 [patent_title] => IMPROVEMENTS IN OR IN RELATION TO SUGARCANE PROCESSING [patent_app_type] => utility [patent_app_number] => 18/024757 [patent_app_country] => US [patent_app_date] => 2021-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2751 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 31 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18024757 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/024757
IMPROVEMENTS IN OR IN RELATION TO SUGARCANE PROCESSING Sep 7, 2021 Abandoned
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