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] => 18240960 [patent_doc_number] => 20230073271 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-09 [patent_title] => PURIFIED PROTEIN COMPOSITIONS AND METHODS OF PRODUCTION [patent_app_type] => utility [patent_app_number] => 18/050213 [patent_app_country] => US [patent_app_date] => 2022-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 31282 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -29 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18050213 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/050213
Purified protein compositions and methods of production Oct 26, 2022 Issued
Array ( [id] => 20115911 [patent_doc_number] => 12365600 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-22 [patent_title] => Waste water management [patent_app_type] => utility [patent_app_number] => 17/974339 [patent_app_country] => US [patent_app_date] => 2022-10-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 21 [patent_no_of_words] => 3467 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17974339 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/974339
Waste water management Oct 25, 2022 Issued
Array ( [id] => 19164952 [patent_doc_number] => 11980834 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-14 [patent_title] => Fractionator annular drain apparatus and method [patent_app_type] => utility [patent_app_number] => 17/973003 [patent_app_country] => US [patent_app_date] => 2022-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 33 [patent_no_of_words] => 11156 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17973003 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/973003
Fractionator annular drain apparatus and method Oct 24, 2022 Issued
Array ( [id] => 19003481 [patent_doc_number] => 20240067552 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => Device and method for large-scale flow solidification treatment of dredged sediment in pipeline without yard [patent_app_type] => utility [patent_app_number] => 17/970815 [patent_app_country] => US [patent_app_date] => 2022-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5667 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17970815 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/970815
Device and method for large-scale flow solidification treatment of dredged sediment in pipeline without yard Oct 20, 2022 Issued
Array ( [id] => 19003481 [patent_doc_number] => 20240067552 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => Device and method for large-scale flow solidification treatment of dredged sediment in pipeline without yard [patent_app_type] => utility [patent_app_number] => 17/970815 [patent_app_country] => US [patent_app_date] => 2022-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5667 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17970815 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/970815
Device and method for large-scale flow solidification treatment of dredged sediment in pipeline without yard Oct 20, 2022 Issued
Array ( [id] => 19112590 [patent_doc_number] => 20240124340 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => DECOMPOSITION OF GAS FIELD CHEMICALS [patent_app_type] => utility [patent_app_number] => 17/967334 [patent_app_country] => US [patent_app_date] => 2022-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7670 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17967334 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/967334
Decomposition of gas field chemicals Oct 16, 2022 Issued
Array ( [id] => 18308638 [patent_doc_number] => 20230112538 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-13 [patent_title] => SYSTEM AND METHOD FOR PRODUCING A SUGAR STREAM [patent_app_type] => utility [patent_app_number] => 18/046949 [patent_app_country] => US [patent_app_date] => 2022-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13509 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18046949 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/046949
SYSTEM AND METHOD FOR PRODUCING A SUGAR STREAM Oct 16, 2022 Pending
Array ( [id] => 18375764 [patent_doc_number] => 20230150845 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-18 [patent_title] => ELECTROLYTIC REACTORS [patent_app_type] => utility [patent_app_number] => 17/967017 [patent_app_country] => US [patent_app_date] => 2022-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3989 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17967017 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/967017
ELECTROLYTIC REACTORS Oct 16, 2022 Pending
Array ( [id] => 19948256 [patent_doc_number] => 12319603 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-03 [patent_title] => Wastewater and sludge treatment device and method [patent_app_type] => utility [patent_app_number] => 18/695087 [patent_app_country] => US [patent_app_date] => 2022-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 12241 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18695087 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/695087
Wastewater and sludge treatment device and method Oct 7, 2022 Issued
Array ( [id] => 20386468 [patent_doc_number] => 12486184 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-02 [patent_title] => Systems and methods for water production, treatment, adjustment and storage [patent_app_type] => utility [patent_app_number] => 17/961484 [patent_app_country] => US [patent_app_date] => 2022-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 21 [patent_no_of_words] => 13971 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 412 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17961484 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/961484
Systems and methods for water production, treatment, adjustment and storage Oct 5, 2022 Issued
Array ( [id] => 18124286 [patent_doc_number] => 20230009898 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-12 [patent_title] => CLOSED LOOP EXTRACTION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/934851 [patent_app_country] => US [patent_app_date] => 2022-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4578 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17934851 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/934851
CLOSED LOOP EXTRACTION SYSTEM Sep 22, 2022 Abandoned
Array ( [id] => 18272320 [patent_doc_number] => 20230093562 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-23 [patent_title] => METHOD FOR TREATING SLUDGE USING SOLAR THERMAL CONCENTRATORS [patent_app_type] => utility [patent_app_number] => 17/946919 [patent_app_country] => US [patent_app_date] => 2022-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2372 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 43 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17946919 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/946919
METHOD FOR TREATING SLUDGE USING SOLAR THERMAL CONCENTRATORS Sep 15, 2022 Abandoned
Array ( [id] => 20451918 [patent_doc_number] => 12514963 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-06 [patent_title] => Inline heater overheating system and method [patent_app_type] => utility [patent_app_number] => 17/903366 [patent_app_country] => US [patent_app_date] => 2022-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 1133 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17903366 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/903366
INLINE HEATER OVERHEATING SYSTEM AND METHOD Sep 5, 2022 Issued
Array ( [id] => 18163613 [patent_doc_number] => 20230030206 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-02 [patent_title] => METHODS AND DEVICES FOR SEPARATION OF BLOOD COMPONENTS [patent_app_type] => utility [patent_app_number] => 17/929203 [patent_app_country] => US [patent_app_date] => 2022-09-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11370 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17929203 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/929203
Methods and devices for separation of blood components Aug 31, 2022 Issued
Array ( [id] => 18258131 [patent_doc_number] => 20230085171 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-16 [patent_title] => TREATED GEOTHERMAL BRINE COMPOSITIONS WITH REDUCED CONCENTRATION OF SILICA, IRON AND LITHIUM [patent_app_type] => utility [patent_app_number] => 17/900113 [patent_app_country] => US [patent_app_date] => 2022-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 49424 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17900113 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/900113
Treated geothermal brine compositions with reduced concentration of silica, iron and lithium Aug 30, 2022 Issued
Array ( [id] => 18122240 [patent_doc_number] => 20230007841 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-12 [patent_title] => Flexible Launder Covers and Related Methods [patent_app_type] => utility [patent_app_number] => 17/823595 [patent_app_country] => US [patent_app_date] => 2022-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7282 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17823595 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/823595
Flexible launder covers and related methods Aug 30, 2022 Issued
Array ( [id] => 19967936 [patent_doc_number] => 12336516 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-24 [patent_title] => Pet hydration system [patent_app_type] => utility [patent_app_number] => 17/898713 [patent_app_country] => US [patent_app_date] => 2022-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 28 [patent_figures_cnt] => 49 [patent_no_of_words] => 6736 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [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] => 17898713 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/898713
Pet hydration system Aug 29, 2022 Issued
Array ( [id] => 19967936 [patent_doc_number] => 12336516 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-24 [patent_title] => Pet hydration system [patent_app_type] => utility [patent_app_number] => 17/898713 [patent_app_country] => US [patent_app_date] => 2022-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 28 [patent_figures_cnt] => 49 [patent_no_of_words] => 6736 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [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] => 17898713 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/898713
Pet hydration system Aug 29, 2022 Issued
Array ( [id] => 18168110 [patent_doc_number] => 20230034720 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-02 [patent_title] => SYSTEMS AND METHODS FOR CANNABIS CBD EXTRACTION [patent_app_type] => utility [patent_app_number] => 17/884547 [patent_app_country] => US [patent_app_date] => 2022-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15307 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17884547 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/884547
SYSTEMS AND METHODS FOR CANNABIS CBD EXTRACTION Aug 8, 2022 Abandoned
Array ( [id] => 18019565 [patent_doc_number] => 20220371064 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-24 [patent_title] => SOLID WASTE TREATMENT SYSTEM AND METHOD [patent_app_type] => utility [patent_app_number] => 17/883455 [patent_app_country] => US [patent_app_date] => 2022-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5364 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17883455 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/883455
Solid waste treatment system and method Aug 7, 2022 Issued
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