Search

Matthew D. Krcha

Examiner (ID: 2046, Phone: (571)270-0386 , Office: P/1798 )

Most Active Art Unit
1798
Art Unit(s)
1796, 1773, 1798
Total Applications
745
Issued Applications
414
Pending Applications
136
Abandoned Applications
209

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20705871 [patent_doc_number] => 12628603 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-12 [patent_title] => Sensor array, apparatus for dispensing a vapor phase reactant to a reaction chamber and related methods [patent_app_type] => utility [patent_app_number] => 17/893383 [patent_app_country] => US [patent_app_date] => 2022-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1137 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 273 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17893383 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/893383
Sensor array, apparatus for dispensing a vapor phase reactant to a reaction chamber and related methods Aug 22, 2022 Issued
Array ( [id] => 18242838 [patent_doc_number] => 20230075149 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-09 [patent_title] => ADDITION OF ALKALINE MATERIALS TO BIOTRICKLING FILTER OR BIO-FILTER MAKE-UP WATER [patent_app_type] => utility [patent_app_number] => 17/893162 [patent_app_country] => US [patent_app_date] => 2022-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14805 [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] => 17893162 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/893162
ADDITION OF ALKALINE MATERIALS TO BIOTRICKLING FILTER OR BIO-FILTER MAKE-UP WATER Aug 21, 2022 Abandoned
Array ( [id] => 19049811 [patent_doc_number] => 20240091780 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-21 [patent_title] => ANALYTE PERMEATION TESTING INSTRUMENT WITH TEST SAMPLE PERIPHERAL EDGE SEALING SURROUND [patent_app_type] => utility [patent_app_number] => 17/820932 [patent_app_country] => US [patent_app_date] => 2022-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3671 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17820932 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/820932
ANALYTE PERMEATION TESTING INSTRUMENT WITH TEST SAMPLE PERIPHERAL EDGE SEALING SURROUND Aug 18, 2022 Abandoned
Array ( [id] => 18209277 [patent_doc_number] => 20230055537 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-23 [patent_title] => MULTI-MODAL NANOPORE SENSORS FOR NUCLEIC ACID SEQUENCING [patent_app_type] => utility [patent_app_number] => 17/890143 [patent_app_country] => US [patent_app_date] => 2022-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7104 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17890143 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/890143
MULTI-MODAL NANOPORE SENSORS FOR NUCLEIC ACID SEQUENCING Aug 16, 2022 Pending
Array ( [id] => 18108527 [patent_doc_number] => 20230001407 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-05 [patent_title] => MICROPOROUS SUBSTRATE FOR USE IN A DISPOSABLE BIOASSAY CARTRIDGE [patent_app_type] => utility [patent_app_number] => 17/886710 [patent_app_country] => US [patent_app_date] => 2022-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9804 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17886710 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/886710
MICROPOROUS SUBSTRATE FOR USE IN A DISPOSABLE BIOASSAY CARTRIDGE Aug 11, 2022 Abandoned
Array ( [id] => 20303455 [patent_doc_number] => 12449440 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-21 [patent_title] => Automated medical sample collection and testing for providing blood coagulation indication [patent_app_type] => utility [patent_app_number] => 17/882585 [patent_app_country] => US [patent_app_date] => 2022-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 29 [patent_figures_cnt] => 34 [patent_no_of_words] => 15742 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 249 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17882585 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/882585
Automated medical sample collection and testing for providing blood coagulation indication Aug 6, 2022 Issued
Array ( [id] => 18197237 [patent_doc_number] => 20230050756 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-16 [patent_title] => PROCESS FOR PRODUCING SODIUM PHOSPHATE FROM SODIUM CARBONATE AND SODIUM BICARBONATE [patent_app_type] => utility [patent_app_number] => 17/880533 [patent_app_country] => US [patent_app_date] => 2022-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7827 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 17880533 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/880533
PROCESS FOR PRODUCING SODIUM PHOSPHATE FROM SODIUM CARBONATE AND SODIUM BICARBONATE Aug 2, 2022 Pending
Array ( [id] => 20607404 [patent_doc_number] => 12582985 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-24 [patent_title] => Sample-in-result-out closed microfluidic device for nucleic acid molecular point-of-care testing detection [patent_app_type] => utility [patent_app_number] => 17/816769 [patent_app_country] => US [patent_app_date] => 2022-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 21 [patent_no_of_words] => 3407 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 497 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17816769 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/816769
Sample-in-result-out closed microfluidic device for nucleic acid molecular point-of-care testing detection Aug 1, 2022 Issued
Array ( [id] => 18075018 [patent_doc_number] => 20220400630 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-22 [patent_title] => METHODS, SYSTEMS, AND APPARATUSES FOR STORING BIODEGRADABLE LITTER FOR COMPOSTING [patent_app_type] => utility [patent_app_number] => 17/815534 [patent_app_country] => US [patent_app_date] => 2022-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4127 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 24 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17815534 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/815534
METHODS, SYSTEMS, AND APPARATUSES FOR STORING BIODEGRADABLE LITTER FOR COMPOSTING Jul 26, 2022 Abandoned
Array ( [id] => 19034554 [patent_doc_number] => 20240084369 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => DIGITAL MICROFLUIDIC APPARATUS AND DRIVING METHOD THEREFOR [patent_app_type] => utility [patent_app_number] => 18/273558 [patent_app_country] => US [patent_app_date] => 2022-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13690 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18273558 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/273558
DIGITAL MICROFLUIDIC APPARATUS AND DRIVING METHOD THEREFOR Jul 20, 2022 Pending
Array ( [id] => 18650764 [patent_doc_number] => 20230296598 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-21 [patent_title] => DEVICE FOR DETECTING AN ANALTE IN A LIQUID SAMPLE [patent_app_type] => utility [patent_app_number] => 17/868370 [patent_app_country] => US [patent_app_date] => 2022-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15536 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 17868370 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/868370
Device for detecting an analte in a liquid sample Jul 18, 2022 Issued
Array ( [id] => 20576940 [patent_doc_number] => 12569174 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-10 [patent_title] => Adjustable lancet and test cartridge for automated medical sample collection and testing [patent_app_type] => utility [patent_app_number] => 17/864364 [patent_app_country] => US [patent_app_date] => 2022-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 31 [patent_figures_cnt] => 43 [patent_no_of_words] => 15950 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17864364 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/864364
Adjustable lancet and test cartridge for automated medical sample collection and testing Jul 12, 2022 Issued
Array ( [id] => 18123994 [patent_doc_number] => 20230009605 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-12 [patent_title] => INTEGRATED MICROFLUIDIC CHIP AND SINGLE-CELL CULTURE, SCREENING, AND EXPORT METHOD APPLYING SAME [patent_app_type] => utility [patent_app_number] => 17/863372 [patent_app_country] => US [patent_app_date] => 2022-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3227 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 266 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17863372 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/863372
INTEGRATED MICROFLUIDIC CHIP AND SINGLE-CELL CULTURE, SCREENING, AND EXPORT METHOD APPLYING SAME Jul 11, 2022 Pending
Array ( [id] => 18307251 [patent_doc_number] => 20230111151 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-13 [patent_title] => DIAGNOSTIC SYSTEM FOR HEMOGLOBIN ANALYSIS [patent_app_type] => utility [patent_app_number] => 17/857451 [patent_app_country] => US [patent_app_date] => 2022-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12568 [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] => 17857451 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/857451
Diagnostic system for hemoglobin analysis Jul 4, 2022 Issued
Array ( [id] => 19359669 [patent_doc_number] => 20240261703 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => CHROMATOGRAPHIC DEVICE [patent_app_type] => utility [patent_app_number] => 18/566826 [patent_app_country] => US [patent_app_date] => 2022-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7095 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18566826 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/566826
CHROMATOGRAPHIC DEVICE Jun 22, 2022 Pending
Array ( [id] => 19542147 [patent_doc_number] => 20240359183 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-31 [patent_title] => AUTOMATIC ANALYZER AND REACTION VESSEL [patent_app_type] => utility [patent_app_number] => 18/571791 [patent_app_country] => US [patent_app_date] => 2022-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4570 [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] => 18571791 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/571791
AUTOMATIC ANALYZER AND REACTION VESSEL Jun 22, 2022 Pending
Array ( [id] => 19379804 [patent_doc_number] => 20240269674 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => FLUIDIC DEVICE FOR FILTERING A FLUID, AND ASSOCIATED METHOD [patent_app_type] => utility [patent_app_number] => 18/569640 [patent_app_country] => US [patent_app_date] => 2022-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10567 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18569640 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/569640
FLUIDIC DEVICE FOR FILTERING A FLUID, AND ASSOCIATED METHOD Jun 12, 2022 Pending
Array ( [id] => 20714451 [patent_doc_number] => 12629676 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-19 [patent_title] => Method and system for improving accuracy of biological assay [patent_app_type] => utility [patent_app_number] => 17/832944 [patent_app_country] => US [patent_app_date] => 2022-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3555 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17832944 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/832944
Method and system for improving accuracy of biological assay Jun 5, 2022 Issued
Array ( [id] => 19301963 [patent_doc_number] => 20240230535 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-11 [patent_title] => SAMPLE HOLDER WITH MATRIX LAYER [patent_app_type] => utility [patent_app_number] => 18/560306 [patent_app_country] => US [patent_app_date] => 2022-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7525 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 18560306 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/560306
SAMPLE HOLDER WITH MATRIX LAYER May 9, 2022 Pending
Array ( [id] => 17959868 [patent_doc_number] => 20220340448 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-27 [patent_title] => Water Distillation Apparatus, Method, and System [patent_app_type] => utility [patent_app_number] => 17/739751 [patent_app_country] => US [patent_app_date] => 2022-05-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 97428 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17739751 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/739751
Water Distillation Apparatus, Method, and System May 8, 2022 Pending
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