Search

Timothy P. Callahan

Director (ID: 5413, 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] => 2712078 [patent_doc_number] => 04982115 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-01 [patent_title] => 'Digital signal direction detection circuit' [patent_app_type] => 1 [patent_app_number] => 7/305344 [patent_app_country] => US [patent_app_date] => 1989-02-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1965 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 204 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/982/04982115.pdf [firstpage_image] =>[orig_patent_app_number] => 305344 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/305344
Digital signal direction detection circuit Feb 1, 1989 Issued
07/307183 PROGRAMMABLE LOGIC DEVICE WITH OBSERVABLE INTERNAL STATES Feb 1, 1989 Abandoned
Array ( [id] => 2641940 [patent_doc_number] => 04910466 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-03-20 [patent_title] => 'Selecting means for selecting a plurality of information' [patent_app_type] => 1 [patent_app_number] => 7/304878 [patent_app_country] => US [patent_app_date] => 1989-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 1987 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/910/04910466.pdf [firstpage_image] =>[orig_patent_app_number] => 304878 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/304878
Selecting means for selecting a plurality of information Jan 30, 1989 Issued
Array ( [id] => 2597766 [patent_doc_number] => 04933574 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-06-12 [patent_title] => 'BiCMOS output driver' [patent_app_type] => 1 [patent_app_number] => 7/303855 [patent_app_country] => US [patent_app_date] => 1989-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3341 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 292 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/933/04933574.pdf [firstpage_image] =>[orig_patent_app_number] => 303855 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/303855
BiCMOS output driver Jan 29, 1989 Issued
Array ( [id] => 2661734 [patent_doc_number] => 04962328 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-10-09 [patent_title] => 'Charge amplifier circuit with drift compensation' [patent_app_type] => 1 [patent_app_number] => 7/301086 [patent_app_country] => US [patent_app_date] => 1989-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 4302 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/962/04962328.pdf [firstpage_image] =>[orig_patent_app_number] => 301086 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/301086
Charge amplifier circuit with drift compensation Jan 24, 1989 Issued
07/300915 CMOS OUTPUT DRIVER Jan 23, 1989 Abandoned
Array ( [id] => 2747871 [patent_doc_number] => 05023476 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-06-11 [patent_title] => 'Semiconductor device with power supply mode-change controller for reliability testing' [patent_app_type] => 1 [patent_app_number] => 7/299424 [patent_app_country] => US [patent_app_date] => 1989-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 4196 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/023/05023476.pdf [firstpage_image] =>[orig_patent_app_number] => 299424 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/299424
Semiconductor device with power supply mode-change controller for reliability testing Jan 22, 1989 Issued
Array ( [id] => 2748152 [patent_doc_number] => 05023491 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-06-11 [patent_title] => 'Filter circuit arrangements with automatic adjustment of cut-off frequencies' [patent_app_type] => 1 [patent_app_number] => 7/297426 [patent_app_country] => US [patent_app_date] => 1989-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 2920 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/023/05023491.pdf [firstpage_image] =>[orig_patent_app_number] => 297426 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/297426
Filter circuit arrangements with automatic adjustment of cut-off frequencies Jan 16, 1989 Issued
Array ( [id] => 2601931 [patent_doc_number] => 04922128 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-05-01 [patent_title] => 'Boost clock circuit for driving redundant wordlines and sample wordlines' [patent_app_type] => 1 [patent_app_number] => 7/296995 [patent_app_country] => US [patent_app_date] => 1989-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1897 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/922/04922128.pdf [firstpage_image] =>[orig_patent_app_number] => 296995 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/296995
Boost clock circuit for driving redundant wordlines and sample wordlines Jan 12, 1989 Issued
Array ( [id] => 2712006 [patent_doc_number] => 04982111 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-01 [patent_title] => 'High speed latching circuit with level shift output circuits' [patent_app_type] => 1 [patent_app_number] => 7/294707 [patent_app_country] => US [patent_app_date] => 1989-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2649 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 361 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/982/04982111.pdf [firstpage_image] =>[orig_patent_app_number] => 294707 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/294707
High speed latching circuit with level shift output circuits Jan 8, 1989 Issued
Array ( [id] => 2567453 [patent_doc_number] => 04849663 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-07-18 [patent_title] => 'Switchable smoothing network' [patent_app_type] => 1 [patent_app_number] => 7/294964 [patent_app_country] => US [patent_app_date] => 1989-01-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 1912 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 392 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/849/04849663.pdf [firstpage_image] =>[orig_patent_app_number] => 294964 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/294964
Switchable smoothing network Jan 5, 1989 Issued
Array ( [id] => 2590078 [patent_doc_number] => 04891536 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-01-02 [patent_title] => 'Solid state switch' [patent_app_type] => 1 [patent_app_number] => 7/290221 [patent_app_country] => US [patent_app_date] => 1988-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1747 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/891/04891536.pdf [firstpage_image] =>[orig_patent_app_number] => 290221 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/290221
Solid state switch Dec 26, 1988 Issued
07/290311 VARIABLE PULSE GENERATOR Dec 26, 1988 Abandoned
07/287720 METHOD AND APPARATUS FOR HIGH SPEED PHASE DETECTION Dec 20, 1988 Abandoned
07/287967 BICMOS POSITIVE SUPPLY VOLTAGE REFERENCE Dec 20, 1988 Abandoned
Array ( [id] => 2630816 [patent_doc_number] => 04967100 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-10-30 [patent_title] => 'Capacitive load driving apparatus' [patent_app_type] => 1 [patent_app_number] => 7/286861 [patent_app_country] => US [patent_app_date] => 1988-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 5756 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 342 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/967/04967100.pdf [firstpage_image] =>[orig_patent_app_number] => 286861 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/286861
Capacitive load driving apparatus Dec 19, 1988 Issued
Array ( [id] => 2630341 [patent_doc_number] => 04920320 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-04-24 [patent_title] => 'Phase locked loop with optimally controlled bandwidth' [patent_app_type] => 1 [patent_app_number] => 7/285997 [patent_app_country] => US [patent_app_date] => 1988-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4329 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 278 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/920/04920320.pdf [firstpage_image] =>[orig_patent_app_number] => 285997 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/285997
Phase locked loop with optimally controlled bandwidth Dec 18, 1988 Issued
Array ( [id] => 2841988 [patent_doc_number] => 05121069 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-09 [patent_title] => 'Low frequency sinewave generator' [patent_app_type] => 1 [patent_app_number] => 7/285463 [patent_app_country] => US [patent_app_date] => 1988-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 3031 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/121/05121069.pdf [firstpage_image] =>[orig_patent_app_number] => 285463 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/285463
Low frequency sinewave generator Dec 15, 1988 Issued
Array ( [id] => 2639967 [patent_doc_number] => 04899069 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-06 [patent_title] => 'Integrated active low-pass filter of the first order' [patent_app_type] => 1 [patent_app_number] => 7/285204 [patent_app_country] => US [patent_app_date] => 1988-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 1377 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/899/04899069.pdf [firstpage_image] =>[orig_patent_app_number] => 285204 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/285204
Integrated active low-pass filter of the first order Dec 15, 1988 Issued
Array ( [id] => 2774947 [patent_doc_number] => 04985642 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-15 [patent_title] => 'High-frequency circuit having a loaded field-effect transistor' [patent_app_type] => 1 [patent_app_number] => 7/284205 [patent_app_country] => US [patent_app_date] => 1988-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 11 [patent_no_of_words] => 4064 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/985/04985642.pdf [firstpage_image] =>[orig_patent_app_number] => 284205 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/284205
High-frequency circuit having a loaded field-effect transistor Dec 13, 1988 Issued
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