Search

Prem C. Singh

Supervisory Patent Examiner (ID: 15974, Phone: (571)272-6381 , Office: P/1771 )

Most Active Art Unit
1797
Art Unit(s)
1764, 1771, 1797
Total Applications
604
Issued Applications
335
Pending Applications
47
Abandoned Applications
223

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19983141 [patent_doc_number] => 20250121363 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-17 [patent_title] => CATALYST FOR PRODUCING BASIC CHEMICAL RAW MATERIAL FROM DIESEL [patent_app_type] => utility [patent_app_number] => 19/000611 [patent_app_country] => US [patent_app_date] => 2024-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2470 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19000611 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/000611
CATALYST FOR PRODUCING BASIC CHEMICAL RAW MATERIAL FROM DIESEL Dec 22, 2024 Pending
Array ( [id] => 20033164 [patent_doc_number] => 20250171386 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-29 [patent_title] => ENERGY-EFFICIENT DISTILLATION PROCESS WITH VARIATION OF INFLOW [patent_app_type] => utility [patent_app_number] => 18/958187 [patent_app_country] => US [patent_app_date] => 2024-11-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2555 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 273 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18958187 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/958187
ENERGY-EFFICIENT DISTILLATION PROCESS WITH VARIATION OF INFLOW Nov 24, 2024 Pending
Array ( [id] => 19684245 [patent_doc_number] => 20250002790 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-02 [patent_title] => HYDROCONVERSION OF A BIOMASS FEEDSTOCK TO HYDROCARBON FUELS IN A SLURRY PHASE CATALYST REACTOR [patent_app_type] => utility [patent_app_number] => 18/759458 [patent_app_country] => US [patent_app_date] => 2024-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3617 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18759458 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/759458
HYDROCONVERSION OF A BIOMASS FEEDSTOCK TO HYDROCARBON FUELS IN A SLURRY PHASE CATALYST REACTOR Jun 27, 2024 Pending
Array ( [id] => 20248300 [patent_doc_number] => 20250297169 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-25 [patent_title] => Processes and Systems for Fractionating a Pyrolysis Effluent [patent_app_type] => utility [patent_app_number] => 18/863213 [patent_app_country] => US [patent_app_date] => 2023-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4703 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -28 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18863213 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/863213
Processes and Systems for Fractionating a Pyrolysis Effluent May 30, 2023 Pending
Array ( [id] => 18435869 [patent_doc_number] => 20230183163 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-15 [patent_title] => METHOD FOR PREPARING ALKYL CARBOXYLIC ACID ESTER AND APPARATUS FOR PREPARING ALKYL CARBOXYLIC ACID ESTER [patent_app_type] => utility [patent_app_number] => 18/109444 [patent_app_country] => US [patent_app_date] => 2023-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5014 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18109444 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/109444
METHOD FOR PREPARING ALKYL CARBOXYLIC ACID ESTER AND APPARATUS FOR PREPARING ALKYL CARBOXYLIC ACID ESTER Feb 13, 2023 Pending
Array ( [id] => 18816389 [patent_doc_number] => 20230390729 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-07 [patent_title] => DEVICE FOR SYNTHESIZING HOMOGENEOUS POLYMER SPHERES BASED ON CHANNEL PREPOLYMERIZATION, AND METHOD OF USING THE SAME [patent_app_type] => utility [patent_app_number] => 18/148470 [patent_app_country] => US [patent_app_date] => 2022-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9177 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18148470 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/148470
DEVICE FOR SYNTHESIZING HOMOGENEOUS POLYMER SPHERES BASED ON CHANNEL PREPOLYMERIZATION, AND METHOD OF USING THE SAME Dec 29, 2022 Pending
Array ( [id] => 20700518 [patent_doc_number] => 12623210 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-12 [patent_title] => Compositions, methods, and apparatuses for catalytic combustion [patent_app_type] => utility [patent_app_number] => 18/147233 [patent_app_country] => US [patent_app_date] => 2022-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 13 [patent_no_of_words] => 6313 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 13 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18147233 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/147233
Compositions, methods, and apparatuses for catalytic combustion Dec 27, 2022 Issued
Array ( [id] => 20465659 [patent_doc_number] => 12521689 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => Continuous synthesis system of urea [patent_app_type] => utility [patent_app_number] => 18/067334 [patent_app_country] => US [patent_app_date] => 2022-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1172 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18067334 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/067334
Continuous synthesis system of urea Dec 15, 2022 Issued
Array ( [id] => 19770230 [patent_doc_number] => 20250051656 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => SYSTEMS AND METHODS TO UPGRADE A HYDROCARBON STREAM TO A LOWER BOILING POINT FEED MATERIAL [patent_app_type] => utility [patent_app_number] => 18/720080 [patent_app_country] => US [patent_app_date] => 2022-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9818 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 25 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18720080 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/720080
SYSTEMS AND METHODS TO UPGRADE A HYDROCARBON STREAM TO A LOWER BOILING POINT FEED MATERIAL Dec 14, 2022 Pending
Array ( [id] => 20771401 [patent_doc_number] => 12655060 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-16 [patent_title] => System and process for oxy-fuel calcination of lime-bearing sludge [patent_app_type] => utility [patent_app_number] => 18/062065 [patent_app_country] => US [patent_app_date] => 2022-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18062065 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/062065
System and process for oxy-fuel calcination of lime-bearing sludge Dec 5, 2022 Issued
Array ( [id] => 20826471 [patent_doc_number] => 12680028 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-07-14 [patent_title] => Heat integration with pyrolysis oil and a heat transfer medium for chemical facilities [patent_app_type] => utility [patent_app_number] => 18/691096 [patent_app_country] => US [patent_app_date] => 2022-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 15651 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18691096 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/691096
Heat integration with pyrolysis oil and a heat transfer medium for chemical facilities Sep 15, 2022 Issued
Array ( [id] => 19600972 [patent_doc_number] => 20240391852 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-28 [patent_title] => OLEFIN PRODUCTION METHOD [patent_app_type] => utility [patent_app_number] => 18/694147 [patent_app_country] => US [patent_app_date] => 2022-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7475 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18694147 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/694147
OLEFIN PRODUCTION METHOD Sep 6, 2022 Pending
Array ( [id] => 18649199 [patent_doc_number] => 20230294985 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-21 [patent_title] => Low carbon hydrogen fuel [patent_app_type] => utility [patent_app_number] => 18/006628 [patent_app_country] => US [patent_app_date] => 2021-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8056 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18006628 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/006628
Low carbon hydrogen fuel Aug 15, 2021 Pending
Array ( [id] => 17562073 [patent_doc_number] => 20220126222 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-28 [patent_title] => CONDENSING MECHANISM OF DISTILLED WATER DISPENSER [patent_app_type] => utility [patent_app_number] => 17/317891 [patent_app_country] => US [patent_app_date] => 2021-05-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2324 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17317891 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/317891
CONDENSING MECHANISM OF DISTILLED WATER DISPENSER May 11, 2021 Abandoned
Array ( [id] => 18529913 [patent_doc_number] => 20230234980 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => DEVICE AND METHOD FOR PRODUCING SUCROSE-6-ESTER [patent_app_type] => utility [patent_app_number] => 18/003505 [patent_app_country] => US [patent_app_date] => 2021-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9306 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18003505 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/003505
Device and method for producing sucrose-6-ester Jan 24, 2021 Issued
Array ( [id] => 12609111 [patent_doc_number] => 20180094867 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-04-05 [patent_title] => Air-liquid heat exchanger [patent_app_type] => utility [patent_app_number] => 15/281314 [patent_app_country] => US [patent_app_date] => 2016-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3608 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15281314 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/281314
Air-liquid heat exchanger Sep 29, 2016 Abandoned
14/117600 METHOD OF PROCESSING A BITUMINOUS FEED AND CONTAMINATED WATER Nov 12, 2013 Abandoned
Array ( [id] => 9727258 [patent_doc_number] => 20140262964 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-09-18 [patent_title] => 'Method of Processing a Bituminous Feed By Staged Addition of a Bridging Liquid' [patent_app_type] => utility [patent_app_number] => 14/112203 [patent_app_country] => US [patent_app_date] => 2012-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 9952 [patent_no_of_claims] => 36 [patent_no_of_ind_claims] => 13 [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] => 14112203 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/112203
Method of Processing a Bituminous Feed By Staged Addition of a Bridging Liquid Mar 8, 2012 Abandoned
Array ( [id] => 9069427 [patent_doc_number] => 20130261183 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-10-03 [patent_title] => 'OPTIMIZED NUTRITIONAL FORMULATIONS, METHODS FOR SELECTION OF TAILORED DIETS THEREFROM, AND METHODS OF USE THEREOF' [patent_app_type] => utility [patent_app_number] => 13/877847 [patent_app_country] => US [patent_app_date] => 2011-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 25532 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 5 [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] => 13877847 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/877847
OPTIMIZED NUTRITIONAL FORMULATIONS, METHODS FOR SELECTION OF TAILORED DIETS THEREFROM, AND METHODS OF USE THEREOF Oct 13, 2011 Pending
Array ( [id] => 7804824 [patent_doc_number] => 20120055776 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-03-08 [patent_title] => 'Multi effect distiller with falling film evaporator and condenser cells' [patent_app_type] => utility [patent_app_number] => 12/807321 [patent_app_country] => US [patent_app_date] => 2010-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3776 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0055/20120055776.pdf [firstpage_image] =>[orig_patent_app_number] => 12807321 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/807321
Multi effect distiller with falling film evaporator and condenser cells Sep 2, 2010 Abandoned
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