Search

David B. Frederiksen

Examiner (ID: 6483, Phone: (571)272-8152 , Office: P/2867 )

Most Active Art Unit
2867
Art Unit(s)
2867, 2858
Total Applications
591
Issued Applications
485
Pending Applications
54
Abandoned Applications
68

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19949319 [patent_doc_number] => 12320679 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-03 [patent_title] => Sensor assembly for a rotary sensor [patent_app_type] => utility [patent_app_number] => 18/399403 [patent_app_country] => US [patent_app_date] => 2023-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 15 [patent_no_of_words] => 1200 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18399403 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/399403
Sensor assembly for a rotary sensor Dec 27, 2023 Issued
Array ( [id] => 20403114 [patent_doc_number] => 12493087 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-09 [patent_title] => Vertical cavity surface-emitting laser threshold magnetometer [patent_app_type] => utility [patent_app_number] => 18/391111 [patent_app_country] => US [patent_app_date] => 2023-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3504 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18391111 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/391111
Vertical cavity surface-emitting laser threshold magnetometer Dec 19, 2023 Issued
Array ( [id] => 19794164 [patent_doc_number] => 12235103 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-02-25 [patent_title] => Systems and methods for identifying misaligned wheeled irrigation towers [patent_app_type] => utility [patent_app_number] => 18/543518 [patent_app_country] => US [patent_app_date] => 2023-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 10116 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18543518 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/543518
Systems and methods for identifying misaligned wheeled irrigation towers Dec 17, 2023 Issued
Array ( [id] => 20214542 [patent_doc_number] => 12411188 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-09 [patent_title] => Signal processing circuit for tunneling magnetoresistance sensor [patent_app_type] => utility [patent_app_number] => 18/540872 [patent_app_country] => US [patent_app_date] => 2023-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 1703 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18540872 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/540872
Signal processing circuit for tunneling magnetoresistance sensor Dec 14, 2023 Issued
Array ( [id] => 20594788 [patent_doc_number] => 12578497 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-17 [patent_title] => Resistivity imaging using EM propagation measurements [patent_app_type] => utility [patent_app_number] => 18/539602 [patent_app_country] => US [patent_app_date] => 2023-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 2475 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 250 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18539602 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/539602
Resistivity imaging using EM propagation measurements Dec 13, 2023 Issued
Array ( [id] => 20303504 [patent_doc_number] => 12449489 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-21 [patent_title] => Three-axis Hall angle sensor with accuracy of 0.3deg [patent_app_type] => utility [patent_app_number] => 18/527347 [patent_app_country] => US [patent_app_date] => 2023-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 1702 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 772 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18527347 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/527347
Three-axis Hall angle sensor with accuracy of 0.3deg Dec 2, 2023 Issued
Array ( [id] => 19035400 [patent_doc_number] => 20240085215 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => Magnetic Rack and Pinion Linear Magnetic Encoder and Position Sensing System [patent_app_type] => utility [patent_app_number] => 18/508413 [patent_app_country] => US [patent_app_date] => 2023-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17727 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -40 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18508413 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/508413
Magnetic Rack and Pinion Linear Magnetic Encoder and Position Sensing System Nov 13, 2023 Pending
Array ( [id] => 19234833 [patent_doc_number] => 20240192027 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-13 [patent_title] => STROKE SENSOR AND STROKE SENSOR ASSEMBLY HAVING THE SAME [patent_app_type] => utility [patent_app_number] => 18/506535 [patent_app_country] => US [patent_app_date] => 2023-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4673 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18506535 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/506535
Stroke sensor and stroke sensor assembly having the same Nov 9, 2023 Issued
Array ( [id] => 19158801 [patent_doc_number] => 20240151508 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-09 [patent_title] => OFF-AXIS ANGLE POSITION SENSOR USING ARRAY OF SPIRAL MAGNET AND METHOD OF USING THE SAME [patent_app_type] => utility [patent_app_number] => 18/486316 [patent_app_country] => US [patent_app_date] => 2023-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12648 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18486316 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/486316
OFF-AXIS ANGLE POSITION SENSOR USING ARRAY OF SPIRAL MAGNET AND METHOD OF USING THE SAME Oct 12, 2023 Pending
Array ( [id] => 19877907 [patent_doc_number] => 20250110164 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-03 [patent_title] => ELECTROSTATIC FIELD STRENGTH MEASURING APPARATUS, DETECTING APPARATUS, METHOD OF MEASURING ELECTROSTATIC FIELD STRENGTH OF TARGET OBJECT [patent_app_type] => utility [patent_app_number] => 18/480482 [patent_app_country] => US [patent_app_date] => 2023-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18180 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18480482 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/480482
ELECTROSTATIC FIELD STRENGTH MEASURING APPARATUS, DETECTING APPARATUS, METHOD OF MEASURING ELECTROSTATIC FIELD STRENGTH OF TARGET OBJECT Oct 2, 2023 Pending
Array ( [id] => 19266512 [patent_doc_number] => 20240210212 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-27 [patent_title] => SENSOR DEVICE AND METHOD OF MANUFACTURING THE SAME [patent_app_type] => utility [patent_app_number] => 18/479999 [patent_app_country] => US [patent_app_date] => 2023-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7206 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18479999 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/479999
SENSOR DEVICE AND METHOD OF MANUFACTURING THE SAME Oct 2, 2023 Pending
Array ( [id] => 19077420 [patent_doc_number] => 11946776 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-04-02 [patent_title] => System and method for determining an item count in a rack using magnetic sensors [patent_app_type] => utility [patent_app_number] => 18/453204 [patent_app_country] => US [patent_app_date] => 2023-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 12 [patent_no_of_words] => 16406 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 420 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18453204 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/453204
System and method for determining an item count in a rack using magnetic sensors Aug 20, 2023 Issued
Array ( [id] => 19962602 [patent_doc_number] => 12332093 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-17 [patent_title] => Magnetic sensor, magnetic encoder, and manufacturing method for magnetic sensor [patent_app_type] => utility [patent_app_number] => 18/446604 [patent_app_country] => US [patent_app_date] => 2023-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 22 [patent_no_of_words] => 14196 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 450 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18446604 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/446604
Magnetic sensor, magnetic encoder, and manufacturing method for magnetic sensor Aug 8, 2023 Issued
Array ( [id] => 19755560 [patent_doc_number] => 20250044125 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => MULTI-TURN MAGNETIC SENSING WITH ROLLOVER COUNTING [patent_app_type] => utility [patent_app_number] => 18/362837 [patent_app_country] => US [patent_app_date] => 2023-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11109 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18362837 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/362837
MULTI-TURN MAGNETIC SENSING WITH ROLLOVER COUNTING Jul 30, 2023 Pending
Array ( [id] => 19747120 [patent_doc_number] => 20250035685 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => METHODS AND APPARATUS OF DETERMINING BYPASS OF ELECTRICAL METER [patent_app_type] => utility [patent_app_number] => 18/361209 [patent_app_country] => US [patent_app_date] => 2023-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12561 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18361209 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/361209
METHODS AND APPARATUS OF DETERMINING BYPASS OF ELECTRICAL METER Jul 27, 2023 Pending
Array ( [id] => 18775199 [patent_doc_number] => 20230370032 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-16 [patent_title] => AMPLIFIER CIRCUITS AND METHOD FOR OPERATING AMPLIFIER CIRCUITS [patent_app_type] => utility [patent_app_number] => 18/360253 [patent_app_country] => US [patent_app_date] => 2023-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9133 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18360253 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/360253
Amplifier circuits and method for operating amplifier circuits Jul 26, 2023 Issued
Array ( [id] => 18790049 [patent_doc_number] => 20230378819 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-23 [patent_title] => METHOD FOR DETECTING FOREIGN MATERIAL, AND DEVICE AND SYSTEM THEREFOR [patent_app_type] => utility [patent_app_number] => 18/356021 [patent_app_country] => US [patent_app_date] => 2023-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 33968 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18356021 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/356021
Method for detecting foreign material, and device and system therefor Jul 19, 2023 Issued
Array ( [id] => 18758152 [patent_doc_number] => 20230361622 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-09 [patent_title] => METHOD FOR DETECTING FOREIGN MATERIAL, AND DEVICE AND SYSTEM THEREFOR [patent_app_type] => utility [patent_app_number] => 18/355909 [patent_app_country] => US [patent_app_date] => 2023-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 33975 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18355909 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/355909
Method for detecting foreign material, and device and system therefor Jul 19, 2023 Issued
Array ( [id] => 18883557 [patent_doc_number] => 20240006926 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => METHOD FOR DETECTING FOREIGN MATERIAL, AND DEVICE AND SYSTEM THEREFOR [patent_app_type] => utility [patent_app_number] => 18/356028 [patent_app_country] => US [patent_app_date] => 2023-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 33975 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18356028 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/356028
Method for detecting foreign material, and device and system therefor Jul 19, 2023 Issued
Array ( [id] => 20216445 [patent_doc_number] => 12413102 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-09 [patent_title] => Method for detecting foreign material, and device and system therefor [patent_app_type] => utility [patent_app_number] => 18/355896 [patent_app_country] => US [patent_app_date] => 2023-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 46 [patent_figures_cnt] => 47 [patent_no_of_words] => 28341 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18355896 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/355896
Method for detecting foreign material, and device and system therefor Jul 19, 2023 Issued
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