Search

Timothy P. Callahan

Director (ID: 14944, Phone: (571)272-4066 , Office: P/2400 )

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

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 3082446 [patent_doc_number] => 05365384 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-11-15 [patent_title] => 'Video tape recorder having automatic index scan method and picture-in-picture function' [patent_app_type] => 1 [patent_app_number] => 7/701759 [patent_app_country] => US [patent_app_date] => 1991-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 5314 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/365/05365384.pdf [firstpage_image] =>[orig_patent_app_number] => 701759 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/701759
Video tape recorder having automatic index scan method and picture-in-picture function May 16, 1991 Issued
Array ( [id] => 3108164 [patent_doc_number] => 05319604 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-06-07 [patent_title] => 'Circuitry and method for selectively switching negative voltages in CMOS integrated circuits' [patent_app_type] => 1 [patent_app_number] => 7/697172 [patent_app_country] => US [patent_app_date] => 1991-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 4164 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/319/05319604.pdf [firstpage_image] =>[orig_patent_app_number] => 697172 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/697172
Circuitry and method for selectively switching negative voltages in CMOS integrated circuits May 7, 1991 Issued
Array ( [id] => 2978538 [patent_doc_number] => 05182468 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-26 [patent_title] => 'Current limiting clamp circuit' [patent_app_type] => 1 [patent_app_number] => 7/696380 [patent_app_country] => US [patent_app_date] => 1991-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 4411 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/182/05182468.pdf [firstpage_image] =>[orig_patent_app_number] => 696380 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/696380
Current limiting clamp circuit May 5, 1991 Issued
Array ( [id] => 2790335 [patent_doc_number] => 05093584 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-03 [patent_title] => 'Self calibrating timing circuit' [patent_app_type] => 1 [patent_app_number] => 7/681626 [patent_app_country] => US [patent_app_date] => 1991-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2653 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/093/05093584.pdf [firstpage_image] =>[orig_patent_app_number] => 681626 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/681626
Self calibrating timing circuit May 5, 1991 Issued
Array ( [id] => 2777714 [patent_doc_number] => 05075572 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-12-24 [patent_title] => 'Detector and integrated circuit device including charge pump circuits for high load conditions' [patent_app_type] => 1 [patent_app_number] => 7/696982 [patent_app_country] => US [patent_app_date] => 1991-05-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 3165 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 278 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/075/05075572.pdf [firstpage_image] =>[orig_patent_app_number] => 696982 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/696982
Detector and integrated circuit device including charge pump circuits for high load conditions May 1, 1991 Issued
Array ( [id] => 2834837 [patent_doc_number] => 05099155 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-24 [patent_title] => 'Active element filter network' [patent_app_type] => 1 [patent_app_number] => 7/690162 [patent_app_country] => US [patent_app_date] => 1991-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 9 [patent_no_of_words] => 2600 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/099/05099155.pdf [firstpage_image] =>[orig_patent_app_number] => 690162 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/690162
Active element filter network Apr 21, 1991 Issued
Array ( [id] => 2899568 [patent_doc_number] => 05184027 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-02 [patent_title] => 'Clock signal supply system' [patent_app_type] => 1 [patent_app_number] => 7/688696 [patent_app_country] => US [patent_app_date] => 1991-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 34 [patent_figures_cnt] => 51 [patent_no_of_words] => 15212 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/184/05184027.pdf [firstpage_image] =>[orig_patent_app_number] => 688696 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/688696
Clock signal supply system Apr 21, 1991 Issued
Array ( [id] => 2896952 [patent_doc_number] => 05270583 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-14 [patent_title] => 'Impedance control circuit for a semiconductor substrate' [patent_app_type] => 1 [patent_app_number] => 7/687188 [patent_app_country] => US [patent_app_date] => 1991-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 14 [patent_no_of_words] => 3488 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 230 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/270/05270583.pdf [firstpage_image] =>[orig_patent_app_number] => 687188 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/687188
Impedance control circuit for a semiconductor substrate Apr 17, 1991 Issued
Array ( [id] => 3458409 [patent_doc_number] => 05378939 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-01-03 [patent_title] => 'Gallium arsenide monolithically integrated sampling head using equivalent time sampling having a bandwidth greater than 100 Ghz' [patent_app_type] => 1 [patent_app_number] => 7/686916 [patent_app_country] => US [patent_app_date] => 1991-04-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 34 [patent_no_of_words] => 23325 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/378/05378939.pdf [firstpage_image] =>[orig_patent_app_number] => 686916 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/686916
Gallium arsenide monolithically integrated sampling head using equivalent time sampling having a bandwidth greater than 100 Ghz Apr 15, 1991 Issued
Array ( [id] => 2795197 [patent_doc_number] => 05103116 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-04-07 [patent_title] => 'CMOS single phase registers' [patent_app_type] => 1 [patent_app_number] => 7/685598 [patent_app_country] => US [patent_app_date] => 1991-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3171 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 571 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/103/05103116.pdf [firstpage_image] =>[orig_patent_app_number] => 685598 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/685598
CMOS single phase registers Apr 14, 1991 Issued
Array ( [id] => 2686017 [patent_doc_number] => 05045728 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-09-03 [patent_title] => 'Trinary to binary level conversion circuit' [patent_app_type] => 1 [patent_app_number] => 7/683581 [patent_app_country] => US [patent_app_date] => 1991-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2280 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/045/05045728.pdf [firstpage_image] =>[orig_patent_app_number] => 683581 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/683581
Trinary to binary level conversion circuit Apr 9, 1991 Issued
07/683163 RATE CONTROLLED NOISE FILTER Apr 9, 1991 Abandoned
07/682775 ANALOG-TO--DIGITAL CONVERTER LATCH CIRCUIT Apr 8, 1991 Abandoned
Array ( [id] => 2788886 [patent_doc_number] => 05142171 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-08-25 [patent_title] => 'Integrated circuit for high side driving of an inductive load' [patent_app_type] => 1 [patent_app_number] => 7/681417 [patent_app_country] => US [patent_app_date] => 1991-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 12 [patent_no_of_words] => 5053 [patent_no_of_claims] => 55 [patent_no_of_ind_claims] => 13 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/142/05142171.pdf [firstpage_image] =>[orig_patent_app_number] => 681417 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/681417
Integrated circuit for high side driving of an inductive load Apr 3, 1991 Issued
Array ( [id] => 2920541 [patent_doc_number] => 05179302 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-12 [patent_title] => 'Tunable data filter' [patent_app_type] => 1 [patent_app_number] => 7/679626 [patent_app_country] => US [patent_app_date] => 1991-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 3147 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/179/05179302.pdf [firstpage_image] =>[orig_patent_app_number] => 679626 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/679626
Tunable data filter Apr 2, 1991 Issued
Array ( [id] => 2939082 [patent_doc_number] => 05196740 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-03-23 [patent_title] => 'Integrated circuit for analogue system' [patent_app_type] => 1 [patent_app_number] => 7/679483 [patent_app_country] => US [patent_app_date] => 1991-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 31 [patent_no_of_words] => 6227 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/196/05196740.pdf [firstpage_image] =>[orig_patent_app_number] => 679483 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/679483
Integrated circuit for analogue system Apr 1, 1991 Issued
Array ( [id] => 2882237 [patent_doc_number] => 05159278 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-10-27 [patent_title] => 'State machine architecture providing increased resolution of output timing' [patent_app_type] => 1 [patent_app_number] => 7/679379 [patent_app_country] => US [patent_app_date] => 1991-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1862 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/159/05159278.pdf [firstpage_image] =>[orig_patent_app_number] => 679379 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/679379
State machine architecture providing increased resolution of output timing Apr 1, 1991 Issued
Array ( [id] => 2908804 [patent_doc_number] => 05245583 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-09-14 [patent_title] => 'Integrated circuit memory with decoded address sustain circuitry for multiplexed address architecture and method' [patent_app_type] => 1 [patent_app_number] => 7/679511 [patent_app_country] => US [patent_app_date] => 1991-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 4300 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/245/05245583.pdf [firstpage_image] =>[orig_patent_app_number] => 679511 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/679511
Integrated circuit memory with decoded address sustain circuitry for multiplexed address architecture and method Apr 1, 1991 Issued
Array ( [id] => 2806850 [patent_doc_number] => 05124597 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-23 [patent_title] => 'Timer circuit including an analog ramp generator and a CMOS counter' [patent_app_type] => 1 [patent_app_number] => 7/678385 [patent_app_country] => US [patent_app_date] => 1991-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 22 [patent_no_of_words] => 10564 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/124/05124597.pdf [firstpage_image] =>[orig_patent_app_number] => 678385 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/678385
Timer circuit including an analog ramp generator and a CMOS counter Mar 31, 1991 Issued
07/678247 ANALOG STANDARD CELL Mar 31, 1991 Abandoned
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