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] => 2616137 [patent_doc_number] => 04906055 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-03-06 [patent_title] => 'Voltage level judging device' [patent_app_type] => 1 [patent_app_number] => 7/380712 [patent_app_country] => US [patent_app_date] => 1989-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1893 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 295 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/906/04906055.pdf [firstpage_image] =>[orig_patent_app_number] => 380712 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/380712
Voltage level judging device Jul 11, 1989 Issued
Array ( [id] => 2674456 [patent_doc_number] => 04954784 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-09-04 [patent_title] => 'Phase adjustment circuit' [patent_app_type] => 1 [patent_app_number] => 7/381641 [patent_app_country] => US [patent_app_date] => 1989-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2368 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/954/04954784.pdf [firstpage_image] =>[orig_patent_app_number] => 381641 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/381641
Phase adjustment circuit Jul 6, 1989 Issued
Array ( [id] => 2750626 [patent_doc_number] => 05015872 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-05-14 [patent_title] => 'Method and circuit arrangement for generating a phase shifted clock pulse signal' [patent_app_type] => 1 [patent_app_number] => 7/375686 [patent_app_country] => US [patent_app_date] => 1989-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 18 [patent_no_of_words] => 3599 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 331 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/015/05015872.pdf [firstpage_image] =>[orig_patent_app_number] => 375686 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/375686
Method and circuit arrangement for generating a phase shifted clock pulse signal Jul 4, 1989 Issued
Array ( [id] => 2591382 [patent_doc_number] => 04963765 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-10-16 [patent_title] => 'High speed CMOS transition detector circuit' [patent_app_type] => 1 [patent_app_number] => 7/376920 [patent_app_country] => US [patent_app_date] => 1989-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1670 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/963/04963765.pdf [firstpage_image] =>[orig_patent_app_number] => 376920 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/376920
High speed CMOS transition detector circuit Jul 2, 1989 Issued
Array ( [id] => 2593325 [patent_doc_number] => 04970406 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-11-13 [patent_title] => 'Resettable latch circuit' [patent_app_type] => 1 [patent_app_number] => 7/372225 [patent_app_country] => US [patent_app_date] => 1989-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 6130 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 451 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/970/04970406.pdf [firstpage_image] =>[orig_patent_app_number] => 372225 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/372225
Resettable latch circuit Jun 25, 1989 Issued
Array ( [id] => 2747318 [patent_doc_number] => 05028820 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-07-02 [patent_title] => 'Series terminated ECL buffer circuit and method with an optimized temperature compensated output voltage swing' [patent_app_type] => 1 [patent_app_number] => 7/370916 [patent_app_country] => US [patent_app_date] => 1989-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 1743 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/028/05028820.pdf [firstpage_image] =>[orig_patent_app_number] => 370916 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/370916
Series terminated ECL buffer circuit and method with an optimized temperature compensated output voltage swing Jun 22, 1989 Issued
Array ( [id] => 2722302 [patent_doc_number] => 05008629 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-04-16 [patent_title] => 'Frequency synthesizer' [patent_app_type] => 1 [patent_app_number] => 7/369408 [patent_app_country] => US [patent_app_date] => 1989-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2887 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 319 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/008/05008629.pdf [firstpage_image] =>[orig_patent_app_number] => 369408 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/369408
Frequency synthesizer Jun 19, 1989 Issued
Array ( [id] => 2752930 [patent_doc_number] => 05038060 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-08-06 [patent_title] => 'Active very-high frequency circuit of the all-pass type utilizing an RC network whose capacitance is the gate-source capacitance of a FET' [patent_app_type] => 1 [patent_app_number] => 7/367519 [patent_app_country] => US [patent_app_date] => 1989-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 5794 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 321 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/038/05038060.pdf [firstpage_image] =>[orig_patent_app_number] => 367519 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/367519
Active very-high frequency circuit of the all-pass type utilizing an RC network whose capacitance is the gate-source capacitance of a FET Jun 15, 1989 Issued
Array ( [id] => 2677378 [patent_doc_number] => 04983924 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-08 [patent_title] => 'Method and apparatus for synchronized sweeping of multiple instruments' [patent_app_type] => 1 [patent_app_number] => 7/367160 [patent_app_country] => US [patent_app_date] => 1989-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 2811 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/983/04983924.pdf [firstpage_image] =>[orig_patent_app_number] => 367160 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/367160
Method and apparatus for synchronized sweeping of multiple instruments Jun 15, 1989 Issued
Array ( [id] => 2650017 [patent_doc_number] => 04980576 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-12-25 [patent_title] => 'Inductance and capacitance charge pump circuit for driving power MOS transistor bridges' [patent_app_type] => 1 [patent_app_number] => 7/364172 [patent_app_country] => US [patent_app_date] => 1989-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 2788 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/980/04980576.pdf [firstpage_image] =>[orig_patent_app_number] => 364172 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/364172
Inductance and capacitance charge pump circuit for driving power MOS transistor bridges Jun 11, 1989 Issued
Array ( [id] => 2757499 [patent_doc_number] => 05072132 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-12-10 [patent_title] => 'VSLI latch system and sliver pulse generator with high correlation factor' [patent_app_type] => 1 [patent_app_number] => 7/363708 [patent_app_country] => US [patent_app_date] => 1989-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 3613 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 11 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/072/05072132.pdf [firstpage_image] =>[orig_patent_app_number] => 363708 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/363708
VSLI latch system and sliver pulse generator with high correlation factor Jun 8, 1989 Issued
Array ( [id] => 2631477 [patent_doc_number] => 04951000 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-08-21 [patent_title] => 'Wide-band phase shifter' [patent_app_type] => 1 [patent_app_number] => 7/363437 [patent_app_country] => US [patent_app_date] => 1989-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 4227 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 221 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/951/04951000.pdf [firstpage_image] =>[orig_patent_app_number] => 363437 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/363437
Wide-band phase shifter Jun 6, 1989 Issued
Array ( [id] => 2602107 [patent_doc_number] => 04922137 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-05-01 [patent_title] => 'Programmable sequence generator' [patent_app_type] => 1 [patent_app_number] => 7/362293 [patent_app_country] => US [patent_app_date] => 1989-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 3339 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/922/04922137.pdf [firstpage_image] =>[orig_patent_app_number] => 362293 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/362293
Programmable sequence generator Jun 5, 1989 Issued
Array ( [id] => 2702816 [patent_doc_number] => 04988888 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-29 [patent_title] => 'CMOS output circuit with intermediate potential setting means' [patent_app_type] => 1 [patent_app_number] => 7/361725 [patent_app_country] => US [patent_app_date] => 1989-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2732 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/988/04988888.pdf [firstpage_image] =>[orig_patent_app_number] => 361725 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/361725
CMOS output circuit with intermediate potential setting means Jun 4, 1989 Issued
Array ( [id] => 2594886 [patent_doc_number] => 04959617 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-09-25 [patent_title] => 'Dual state phase detector having frequency steering capability' [patent_app_type] => 1 [patent_app_number] => 7/357912 [patent_app_country] => US [patent_app_date] => 1989-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3084 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 219 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/959/04959617.pdf [firstpage_image] =>[orig_patent_app_number] => 357912 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/357912
Dual state phase detector having frequency steering capability May 29, 1989 Issued
Array ( [id] => 2673142 [patent_doc_number] => 04999527 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-03-12 [patent_title] => 'One-spot multivibrator' [patent_app_type] => 1 [patent_app_number] => 7/356886 [patent_app_country] => US [patent_app_date] => 1989-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2109 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 217 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/999/04999527.pdf [firstpage_image] =>[orig_patent_app_number] => 356886 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/356886
One-spot multivibrator May 24, 1989 Issued
Array ( [id] => 2738465 [patent_doc_number] => 04998025 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-03-05 [patent_title] => 'Device for generating strobe pulses with a desired timing' [patent_app_type] => 1 [patent_app_number] => 7/354775 [patent_app_country] => US [patent_app_date] => 1989-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 4442 [patent_no_of_claims] => 5 [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] => patents/04/998/04998025.pdf [firstpage_image] =>[orig_patent_app_number] => 354775 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/354775
Device for generating strobe pulses with a desired timing May 21, 1989 Issued
07/353284 TRINARY TO BINARY LEVEL CONVERSION CIRCUIT May 16, 1989 Abandoned
Array ( [id] => 2753677 [patent_doc_number] => 05021681 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-06-04 [patent_title] => 'Jiter-invariant switched capacitor pulse shaper' [patent_app_type] => 1 [patent_app_number] => 7/352544 [patent_app_country] => US [patent_app_date] => 1989-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2185 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/021/05021681.pdf [firstpage_image] =>[orig_patent_app_number] => 352544 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/352544
Jiter-invariant switched capacitor pulse shaper May 15, 1989 Issued
Array ( [id] => 2528559 [patent_doc_number] => 04884035 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-11-28 [patent_title] => 'Wide range digital phase/frequency detector' [patent_app_type] => 1 [patent_app_number] => 7/351229 [patent_app_country] => US [patent_app_date] => 1989-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 4365 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/884/04884035.pdf [firstpage_image] =>[orig_patent_app_number] => 351229 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/351229
Wide range digital phase/frequency detector May 14, 1989 Issued
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