Search

Timothy P. Callahan

Director (ID: 12088, Phone: (571)272-4066 , Office: P/2400 )

Most Active Art Unit
2504
Art Unit(s)
2899, 2504, 2816
Total Applications
793
Issued Applications
652
Pending Applications
7
Abandoned Applications
134

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17792636 [patent_doc_number] => 20220251727 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-11 [patent_title] => APPARATUS AND METHOD FOR MANUFACTURING HEXAGONAL SILICON CRYSTAL [patent_app_type] => utility [patent_app_number] => 17/630553 [patent_app_country] => US [patent_app_date] => 2020-06-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6435 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17630553 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/630553
Apparatus and method for manufacturing hexagonal silicon crystal Jun 9, 2020 Issued
Array ( [id] => 19079420 [patent_doc_number] => 11948796 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-02 [patent_title] => Selective methods for fabricating devices and structures [patent_app_type] => utility [patent_app_number] => 17/616131 [patent_app_country] => US [patent_app_date] => 2020-06-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 4074 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17616131 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/616131
Selective methods for fabricating devices and structures Jun 9, 2020 Issued
Array ( [id] => 17700131 [patent_doc_number] => 11373864 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-06-28 [patent_title] => Method of forming oxide film, method of manufacturing semiconductor device, and apparatus configured to form oxide film [patent_app_type] => utility [patent_app_number] => 16/892789 [patent_app_country] => US [patent_app_date] => 2020-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 6965 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16892789 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/892789
Method of forming oxide film, method of manufacturing semiconductor device, and apparatus configured to form oxide film Jun 3, 2020 Issued
Array ( [id] => 17697443 [patent_doc_number] => 11371161 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-06-28 [patent_title] => Method of forming oxide film, method of manufacturing semiconductor device, and film forming apparatus configured to form oxide film [patent_app_type] => utility [patent_app_number] => 16/892793 [patent_app_country] => US [patent_app_date] => 2020-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 8319 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16892793 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/892793
Method of forming oxide film, method of manufacturing semiconductor device, and film forming apparatus configured to form oxide film Jun 3, 2020 Issued
Array ( [id] => 16312183 [patent_doc_number] => 20200290921 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-09-17 [patent_title] => SILICON AND SILICA NANOSTRUCTURES AND METHOD OF MAKING SILICON AND SILICA NANOSTRUCTURES [patent_app_type] => utility [patent_app_number] => 16/891606 [patent_app_country] => US [patent_app_date] => 2020-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6691 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16891606 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/891606
Silicon and silica nanostructures and method of making silicon and silica nanostructures Jun 2, 2020 Issued
Array ( [id] => 17765105 [patent_doc_number] => 20220238718 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-28 [patent_title] => METAL OXIDE AND TRANSISTOR INCLUDING METAL OXIDE [patent_app_type] => utility [patent_app_number] => 17/616426 [patent_app_country] => US [patent_app_date] => 2020-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 60945 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17616426 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/616426
Metal oxide and transistor including metal oxide May 31, 2020 Issued
Array ( [id] => 16414841 [patent_doc_number] => 10822720 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2020-11-03 [patent_title] => Composition for preparing silicon carbide ingot and method for preparing silicon carbide ingot using the same [patent_app_type] => utility [patent_app_number] => 16/887263 [patent_app_country] => US [patent_app_date] => 2020-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 6965 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16887263 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/887263
Composition for preparing silicon carbide ingot and method for preparing silicon carbide ingot using the same May 28, 2020 Issued
Array ( [id] => 17104691 [patent_doc_number] => 11124892 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-09-21 [patent_title] => Defect reduction in seeded aluminum nitride crystal growth [patent_app_type] => utility [patent_app_number] => 16/881148 [patent_app_country] => US [patent_app_date] => 2020-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 13 [patent_no_of_words] => 15188 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16881148 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/881148
Defect reduction in seeded aluminum nitride crystal growth May 21, 2020 Issued
Array ( [id] => 16467171 [patent_doc_number] => 20200368708 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-26 [patent_title] => STABILIZED COLLOIDAL CRYSTALS AND METHODS OF STABILIZING COLLOIDAL CRYSTALS [patent_app_type] => utility [patent_app_number] => 16/882002 [patent_app_country] => US [patent_app_date] => 2020-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5599 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16882002 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/882002
Stabilized colloidal crystals and methods of stabilizing colloidal crystals May 21, 2020 Issued
Array ( [id] => 17761875 [patent_doc_number] => 20220235487 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-28 [patent_title] => QUANTITATIVE TEXTURED POLYCRYSTALLINE COATINGS [patent_app_type] => utility [patent_app_number] => 17/611748 [patent_app_country] => US [patent_app_date] => 2020-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3229 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 34 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17611748 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/611748
Quantitative textured polycrystalline coatings May 14, 2020 Issued
Array ( [id] => 17239674 [patent_doc_number] => 11183567 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-11-23 [patent_title] => Doped aluminum nitride crystals and methods of making them [patent_app_type] => utility [patent_app_number] => 16/874813 [patent_app_country] => US [patent_app_date] => 2020-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 5379 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16874813 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/874813
Doped aluminum nitride crystals and methods of making them May 14, 2020 Issued
Array ( [id] => 18092091 [patent_doc_number] => 20220410432 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => INGOT TEMPERATURE CONTROLLER AND WIRE SAWING DEVICE HAVING SAME [patent_app_type] => utility [patent_app_number] => 17/780162 [patent_app_country] => US [patent_app_date] => 2020-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3582 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 17780162 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/780162
Ingot temperature controller and wire sawing device having same May 7, 2020 Issued
Array ( [id] => 17830622 [patent_doc_number] => 20220267926 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-25 [patent_title] => METHOD FOR DEPOSITING AN EPITAXIAL LAYER ON A FRONT SIDE OF A SEMICONDUCTOR WAFER, AND DEVICE FOR CARRYING OUT THE METHOD [patent_app_type] => utility [patent_app_number] => 17/614214 [patent_app_country] => US [patent_app_date] => 2020-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2292 [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] => 17614214 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/614214
Method for depositing an epitaxial layer on a front side of a semiconductor wafer, and device for carrying out the method Apr 28, 2020 Issued
Array ( [id] => 20402517 [patent_doc_number] => 12492488 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-09 [patent_title] => Silicon carbide epitaxial growth device and method of manufacturing silicon carbide epitaxial wafer [patent_app_type] => utility [patent_app_number] => 16/861885 [patent_app_country] => US [patent_app_date] => 2020-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16861885 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/861885
Silicon carbide epitaxial growth device and method of manufacturing silicon carbide epitaxial wafer Apr 28, 2020 Issued
Array ( [id] => 17930308 [patent_doc_number] => 20220325433 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-13 [patent_title] => AN ADDITIVE FABRICATION METHOD OF TRANSPARENT ROCK MICROMODELS WITH IN-SITU MINERAL COATING [patent_app_type] => utility [patent_app_number] => 17/621161 [patent_app_country] => US [patent_app_date] => 2020-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5991 [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] => 17621161 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/621161
Additive fabrication method of transparent rock micromodels with in-situ mineral coating Apr 21, 2020 Issued
Array ( [id] => 19827151 [patent_doc_number] => 12247923 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-11 [patent_title] => Graphene hybrids for biological and chemical sensing [patent_app_type] => utility [patent_app_number] => 17/594595 [patent_app_country] => US [patent_app_date] => 2020-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 27 [patent_no_of_words] => 9409 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17594595 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/594595
Graphene hybrids for biological and chemical sensing Apr 20, 2020 Issued
Array ( [id] => 19638236 [patent_doc_number] => 12168839 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-17 [patent_title] => Growth of A-B crystals without crystal lattice curvature [patent_app_type] => utility [patent_app_number] => 16/842810 [patent_app_country] => US [patent_app_date] => 2020-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 9290 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16842810 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/842810
Growth of A-B crystals without crystal lattice curvature Apr 7, 2020 Issued
Array ( [id] => 19043874 [patent_doc_number] => 11932964 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-19 [patent_title] => Polycrystalline silicon material [patent_app_type] => utility [patent_app_number] => 17/601452 [patent_app_country] => US [patent_app_date] => 2020-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 13891 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17601452 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/601452
Polycrystalline silicon material Apr 1, 2020 Issued
Array ( [id] => 17407439 [patent_doc_number] => 11248311 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-02-15 [patent_title] => Sapphire ribbon and apparatus for manufacturing single crystal ribbons [patent_app_type] => utility [patent_app_number] => 16/826896 [patent_app_country] => US [patent_app_date] => 2020-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3933 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16826896 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/826896
Sapphire ribbon and apparatus for manufacturing single crystal ribbons Mar 22, 2020 Issued
Array ( [id] => 16328892 [patent_doc_number] => 20200299858 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-09-24 [patent_title] => METHOD FOR PRODUCING GROUP III NITRIDE SEMICONDUCTOR [patent_app_type] => utility [patent_app_number] => 16/817128 [patent_app_country] => US [patent_app_date] => 2020-03-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4935 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16817128 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/817128
METHOD FOR PRODUCING GROUP III NITRIDE SEMICONDUCTOR Mar 11, 2020 Abandoned
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