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] => 2555905 [patent_doc_number] => 04833341 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-05-23 [patent_title] => 'Semiconductor device with power supply voltage converter circuit' [patent_app_type] => 1 [patent_app_number] => 7/031263 [patent_app_country] => US [patent_app_date] => 1987-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 12 [patent_no_of_words] => 4197 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/833/04833341.pdf [firstpage_image] =>[orig_patent_app_number] => 031263 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/031263
Semiconductor device with power supply voltage converter circuit Mar 29, 1987 Issued
Array ( [id] => 2593576 [patent_doc_number] => 04970419 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-11-13 [patent_title] => 'Low-noise transmission line termination circuitry' [patent_app_type] => 1 [patent_app_number] => 7/028984 [patent_app_country] => US [patent_app_date] => 1987-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1418 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/970/04970419.pdf [firstpage_image] =>[orig_patent_app_number] => 028984 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/028984
Low-noise transmission line termination circuitry Mar 22, 1987 Issued
Array ( [id] => 2566627 [patent_doc_number] => 04857777 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-08-15 [patent_title] => 'Monolithic microwave phase shifting network' [patent_app_type] => 1 [patent_app_number] => 7/025971 [patent_app_country] => US [patent_app_date] => 1987-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 8607 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 379 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/857/04857777.pdf [firstpage_image] =>[orig_patent_app_number] => 025971 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/025971
Monolithic microwave phase shifting network Mar 15, 1987 Issued
Array ( [id] => 2447242 [patent_doc_number] => 04779011 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-10-18 [patent_title] => 'Latch circuit having two hold loops' [patent_app_type] => 1 [patent_app_number] => 7/024717 [patent_app_country] => US [patent_app_date] => 1987-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 5927 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/779/04779011.pdf [firstpage_image] =>[orig_patent_app_number] => 024717 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/024717
Latch circuit having two hold loops Mar 10, 1987 Issued
Array ( [id] => 2550432 [patent_doc_number] => 04804864 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-02-14 [patent_title] => 'Multiphase CMOS toggle flip-flop' [patent_app_type] => 1 [patent_app_number] => 7/023179 [patent_app_country] => US [patent_app_date] => 1987-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2418 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/804/04804864.pdf [firstpage_image] =>[orig_patent_app_number] => 023179 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/023179
Multiphase CMOS toggle flip-flop Mar 8, 1987 Issued
Array ( [id] => 2507851 [patent_doc_number] => 04799024 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-01-17 [patent_title] => 'Circuit arrangement to monitor the time spacing of signals' [patent_app_type] => 1 [patent_app_number] => 7/021598 [patent_app_country] => US [patent_app_date] => 1987-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2027 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/799/04799024.pdf [firstpage_image] =>[orig_patent_app_number] => 021598 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/021598
Circuit arrangement to monitor the time spacing of signals Mar 2, 1987 Issued
Array ( [id] => 2458343 [patent_doc_number] => 04766390 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-08-23 [patent_title] => 'CRT filament supply for multiple frequency video apparatus' [patent_app_type] => 1 [patent_app_number] => 7/020004 [patent_app_country] => US [patent_app_date] => 1987-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 3301 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/766/04766390.pdf [firstpage_image] =>[orig_patent_app_number] => 020004 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/020004
CRT filament supply for multiple frequency video apparatus Feb 26, 1987 Issued
Array ( [id] => 2424415 [patent_doc_number] => 04727331 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-02-23 [patent_title] => 'Warning tone signal generator' [patent_app_type] => 1 [patent_app_number] => 7/018842 [patent_app_country] => US [patent_app_date] => 1987-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 5439 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/727/04727331.pdf [firstpage_image] =>[orig_patent_app_number] => 018842 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/018842
Warning tone signal generator Feb 23, 1987 Issued
07/015750 SEMICONDUCTOR INTEGRATED CIRCUIT Feb 16, 1987 Abandoned
Array ( [id] => 2387401 [patent_doc_number] => 04775805 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-10-04 [patent_title] => 'Differential frequency signal generator' [patent_app_type] => 1 [patent_app_number] => 7/014025 [patent_app_country] => US [patent_app_date] => 1987-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 13 [patent_no_of_words] => 5163 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 10 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/775/04775805.pdf [firstpage_image] =>[orig_patent_app_number] => 014025 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/014025
Differential frequency signal generator Feb 11, 1987 Issued
Array ( [id] => 2392292 [patent_doc_number] => 04777385 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-10-11 [patent_title] => 'Signal transient improvement circuit' [patent_app_type] => 1 [patent_app_number] => 7/012392 [patent_app_country] => US [patent_app_date] => 1987-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2659 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 266 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/777/04777385.pdf [firstpage_image] =>[orig_patent_app_number] => 012392 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/012392
Signal transient improvement circuit Feb 8, 1987 Issued
Array ( [id] => 2531044 [patent_doc_number] => 04797624 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-01-10 [patent_title] => 'Method and apparatus for editing particle produced electrical pulses' [patent_app_type] => 1 [patent_app_number] => 7/044530 [patent_app_country] => US [patent_app_date] => 1987-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 3418 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 27 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/797/04797624.pdf [firstpage_image] =>[orig_patent_app_number] => 044530 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/044530
Method and apparatus for editing particle produced electrical pulses Jan 28, 1987 Issued
Array ( [id] => 2387278 [patent_doc_number] => 04695742 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1987-09-22 [patent_title] => 'Charge balance voltage-to-frequency converter utilizing CMOS circuitry' [patent_app_type] => 1 [patent_app_number] => 7/008102 [patent_app_country] => US [patent_app_date] => 1987-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3789 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 277 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/695/04695742.pdf [firstpage_image] =>[orig_patent_app_number] => 008102 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/008102
Charge balance voltage-to-frequency converter utilizing CMOS circuitry Jan 19, 1987 Issued
Array ( [id] => 2558046 [patent_doc_number] => 04808859 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-02-28 [patent_title] => 'Broadband electronic switch' [patent_app_type] => 1 [patent_app_number] => 7/001947 [patent_app_country] => US [patent_app_date] => 1987-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 4653 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/808/04808859.pdf [firstpage_image] =>[orig_patent_app_number] => 001947 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/001947
Broadband electronic switch Jan 8, 1987 Issued
06/944002 SELECTING MEANS FOR SELECTING A PLURALITY OF INFORMATION Dec 21, 1986 Abandoned
Array ( [id] => 2550956 [patent_doc_number] => 04810909 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-03-07 [patent_title] => 'Amplifier circuit having high-speed raising time' [patent_app_type] => 1 [patent_app_number] => 6/942191 [patent_app_country] => US [patent_app_date] => 1986-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 3036 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/810/04810909.pdf [firstpage_image] =>[orig_patent_app_number] => 942191 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/942191
Amplifier circuit having high-speed raising time Dec 15, 1986 Issued
Array ( [id] => 2388100 [patent_doc_number] => 04775840 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-10-04 [patent_title] => 'Noise removing circuit' [patent_app_type] => 1 [patent_app_number] => 6/942531 [patent_app_country] => US [patent_app_date] => 1986-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 2165 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/775/04775840.pdf [firstpage_image] =>[orig_patent_app_number] => 942531 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/942531
Noise removing circuit Dec 15, 1986 Issued
Array ( [id] => 2419131 [patent_doc_number] => 04746819 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-05-24 [patent_title] => 'Phase shifting circuit for pulse signals' [patent_app_type] => 1 [patent_app_number] => 6/939631 [patent_app_country] => US [patent_app_date] => 1986-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 5091 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/746/04746819.pdf [firstpage_image] =>[orig_patent_app_number] => 939631 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/939631
Phase shifting circuit for pulse signals Dec 8, 1986 Issued
Array ( [id] => 2423442 [patent_doc_number] => 04734597 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-03-29 [patent_title] => 'CMOS inverter chain' [patent_app_type] => 1 [patent_app_number] => 6/938632 [patent_app_country] => US [patent_app_date] => 1986-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2717 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/734/04734597.pdf [firstpage_image] =>[orig_patent_app_number] => 938632 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/938632
CMOS inverter chain Dec 4, 1986 Issued
Array ( [id] => 2393119 [patent_doc_number] => 04754166 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-06-28 [patent_title] => 'Reset circuit for integrated injection logic' [patent_app_type] => 1 [patent_app_number] => 6/937429 [patent_app_country] => US [patent_app_date] => 1986-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 18 [patent_no_of_words] => 4934 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 261 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/754/04754166.pdf [firstpage_image] =>[orig_patent_app_number] => 937429 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/937429
Reset circuit for integrated injection logic Dec 2, 1986 Issued
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