Search

Mark D. Featherstone

Supervisory Patent Examiner (ID: 8997, Phone: (571)270-3750 , Office: P/4164 )

Most Active Art Unit
2423
Art Unit(s)
2623, 2111, 4164, 2166, 2423
Total Applications
334
Issued Applications
194
Pending Applications
15
Abandoned Applications
128

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18991016 [patent_doc_number] => 20240062985 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => X-RAY TUBE WITH FLEXIBLE INTENSITY ADJUSTMENT [patent_app_type] => utility [patent_app_number] => 18/447503 [patent_app_country] => US [patent_app_date] => 2023-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10972 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18447503 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/447503
X-ray tube with flexible intensity adjustment Aug 9, 2023 Issued
Array ( [id] => 20159234 [patent_doc_number] => 12385855 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-12 [patent_title] => X-ray imaging system and learned model production method [patent_app_type] => utility [patent_app_number] => 18/363144 [patent_app_country] => US [patent_app_date] => 2023-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 14 [patent_no_of_words] => 7761 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18363144 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/363144
X-ray imaging system and learned model production method Jul 31, 2023 Issued
Array ( [id] => 19510019 [patent_doc_number] => 20240341705 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => MOBILE TOMOSYNTHESIS IMAGING EQUIPMENT [patent_app_type] => utility [patent_app_number] => 18/220365 [patent_app_country] => US [patent_app_date] => 2023-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3802 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18220365 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/220365
Mobile tomosynthesis imaging equipment Jul 10, 2023 Issued
Array ( [id] => 20646758 [patent_doc_number] => 12601697 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-14 [patent_title] => System and method for predicting the presence of rare earth elements [patent_app_type] => utility [patent_app_number] => 18/347826 [patent_app_country] => US [patent_app_date] => 2023-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18347826 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/347826
System and method for predicting the presence of rare earth elements Jul 5, 2023 Issued
Array ( [id] => 18877780 [patent_doc_number] => 20240001149 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => METHODS AND SYSTEMS FOR DOSE DISTRIBUTION PREDICTION [patent_app_type] => utility [patent_app_number] => 18/346170 [patent_app_country] => US [patent_app_date] => 2023-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19416 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18346170 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/346170
Methods and systems for dose distribution prediction Jun 29, 2023 Issued
Array ( [id] => 20157167 [patent_doc_number] => 12383766 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-12 [patent_title] => Radiation irradiation system and control method therefor [patent_app_type] => utility [patent_app_number] => 18/215900 [patent_app_country] => US [patent_app_date] => 2023-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 8259 [patent_no_of_claims] => 10 [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] => 18215900 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/215900
Radiation irradiation system and control method therefor Jun 28, 2023 Issued
Array ( [id] => 19951195 [patent_doc_number] => 12322566 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-03 [patent_title] => Systems and methods for a liquid metal bearing assembly fill port and plug [patent_app_type] => utility [patent_app_number] => 18/342494 [patent_app_country] => US [patent_app_date] => 2023-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 14 [patent_no_of_words] => 9769 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18342494 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/342494
Systems and methods for a liquid metal bearing assembly fill port and plug Jun 26, 2023 Issued
Array ( [id] => 18848703 [patent_doc_number] => 20230411107 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-21 [patent_title] => BRUSHLESS DRIVE SYSTEM FOR A ROTARY ANODE ARRANGEMENT OF AN X-RAY TUBE [patent_app_type] => utility [patent_app_number] => 18/336509 [patent_app_country] => US [patent_app_date] => 2023-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8113 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18336509 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/336509
Brushless drive system for a rotary anode arrangement of an x-ray tube Jun 15, 2023 Issued
Array ( [id] => 20607260 [patent_doc_number] => 12582840 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-24 [patent_title] => System and method for radiation treatment planning [patent_app_type] => utility [patent_app_number] => 18/315961 [patent_app_country] => US [patent_app_date] => 2023-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 15766 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18315961 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/315961
System and method for radiation treatment planning May 10, 2023 Issued
Array ( [id] => 18737435 [patent_doc_number] => 20230346327 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-02 [patent_title] => CONTROLLER FOR IMAGING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/195991 [patent_app_country] => US [patent_app_date] => 2023-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3302 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18195991 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/195991
Controller for imaging apparatus May 10, 2023 Issued
Array ( [id] => 19915357 [patent_doc_number] => 12290704 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-06 [patent_title] => Dose aspects of radiation therapy planning and treatment [patent_app_type] => utility [patent_app_number] => 18/312684 [patent_app_country] => US [patent_app_date] => 2023-05-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 26 [patent_no_of_words] => 7077 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18312684 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/312684
Dose aspects of radiation therapy planning and treatment May 4, 2023 Issued
Array ( [id] => 18738258 [patent_doc_number] => 20230347174 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-02 [patent_title] => METHODS AND SYSTEMS FOR DETERMINING RADIATION FIELD INFORMATION [patent_app_type] => utility [patent_app_number] => 18/309783 [patent_app_country] => US [patent_app_date] => 2023-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 23209 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18309783 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/309783
METHODS AND SYSTEMS FOR DETERMINING RADIATION FIELD INFORMATION Apr 28, 2023 Pending
Array ( [id] => 18842955 [patent_doc_number] => 20230405359 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-21 [patent_title] => JOINT OPTIMIZATION OF RADIONUCLIDE AND EXTERNAL BEAM RADIOTHERAPY [patent_app_type] => utility [patent_app_number] => 18/301085 [patent_app_country] => US [patent_app_date] => 2023-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 23374 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [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] => 18301085 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/301085
Joint optimization of radionuclide and external beam radiotherapy Apr 13, 2023 Issued
Array ( [id] => 20355892 [patent_doc_number] => 12471869 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-18 [patent_title] => X-ray imaging system for a cephalometric dentomaxillofacial x-ray imaging operation [patent_app_type] => utility [patent_app_number] => 18/297475 [patent_app_country] => US [patent_app_date] => 2023-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 0 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18297475 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/297475
X-ray imaging system for a cephalometric dentomaxillofacial x-ray imaging operation Apr 6, 2023 Issued
Array ( [id] => 18880464 [patent_doc_number] => 20240003833 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => METHODS AND APPARATUS FOR RADIOGRAPHIC SOURCE EXPOSURE [patent_app_type] => utility [patent_app_number] => 18/295626 [patent_app_country] => US [patent_app_date] => 2023-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6139 [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] => 18295626 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/295626
Methods and apparatus for radiographic source exposure Apr 3, 2023 Issued
Array ( [id] => 20255006 [patent_doc_number] => 12427339 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-30 [patent_title] => Training artificial intelligence models for radiation therapy [patent_app_type] => utility [patent_app_number] => 18/190345 [patent_app_country] => US [patent_app_date] => 2023-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6915 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18190345 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/190345
Training artificial intelligence models for radiation therapy Mar 26, 2023 Issued
Array ( [id] => 20254510 [patent_doc_number] => 12426842 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-30 [patent_title] => Methods and systems for flexible paddle for use with a mammography system [patent_app_type] => utility [patent_app_number] => 18/186026 [patent_app_country] => US [patent_app_date] => 2023-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 9506 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18186026 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/186026
Methods and systems for flexible paddle for use with a mammography system Mar 16, 2023 Issued
Array ( [id] => 18510274 [patent_doc_number] => 20230226381 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-20 [patent_title] => DEVICE, METHOD AND SYSTEM FOR IMPLEMENTING A PHYSICAL AREA NETWORK FOR DETECTING EFFECTS OF THE SUN [patent_app_type] => utility [patent_app_number] => 18/120091 [patent_app_country] => US [patent_app_date] => 2023-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 29285 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 12 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18120091 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/120091
DEVICE, METHOD AND SYSTEM FOR IMPLEMENTING A PHYSICAL AREA NETWORK FOR DETECTING EFFECTS OF THE SUN Mar 9, 2023 Pending
Array ( [id] => 20076055 [patent_doc_number] => 12350086 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Information processing apparatus, information processing method, and information processing program [patent_app_type] => utility [patent_app_number] => 18/177554 [patent_app_country] => US [patent_app_date] => 2023-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 13 [patent_no_of_words] => 4806 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18177554 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/177554
Information processing apparatus, information processing method, and information processing program Mar 1, 2023 Issued
Array ( [id] => 18436814 [patent_doc_number] => 20230184108 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-15 [patent_title] => DETECTING DOWNHOLE FLUID COMPOSITION UTILIZING PHOTON EMISSION [patent_app_type] => utility [patent_app_number] => 18/165766 [patent_app_country] => US [patent_app_date] => 2023-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11595 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [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] => 18165766 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/165766
Detecting downhole fluid composition utilizing photon emission Feb 6, 2023 Issued
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