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] => 2846813 [patent_doc_number] => 05138188 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-08-11 [patent_title] => 'Edge-sensitive pulse generator' [patent_app_type] => 1 [patent_app_number] => 7/727655 [patent_app_country] => US [patent_app_date] => 1991-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 13 [patent_no_of_words] => 3246 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/138/05138188.pdf [firstpage_image] =>[orig_patent_app_number] => 727655 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/727655
Edge-sensitive pulse generator Jul 8, 1991 Issued
Array ( [id] => 2950562 [patent_doc_number] => 05254955 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-19 [patent_title] => 'Advanced phase locked loop circuit' [patent_app_type] => 1 [patent_app_number] => 7/727840 [patent_app_country] => US [patent_app_date] => 1991-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 28 [patent_figures_cnt] => 43 [patent_no_of_words] => 17142 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/254/05254955.pdf [firstpage_image] =>[orig_patent_app_number] => 727840 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/727840
Advanced phase locked loop circuit Jul 8, 1991 Issued
Array ( [id] => 3061908 [patent_doc_number] => 05307317 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-04-26 [patent_title] => 'Semiconductor memory device having improved access to addresses' [patent_app_type] => 1 [patent_app_number] => 7/726379 [patent_app_country] => US [patent_app_date] => 1991-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3879 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/307/05307317.pdf [firstpage_image] =>[orig_patent_app_number] => 726379 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/726379
Semiconductor memory device having improved access to addresses Jul 4, 1991 Issued
Array ( [id] => 2939459 [patent_doc_number] => 05229664 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-20 [patent_title] => 'Programmable differentiator delay' [patent_app_type] => 1 [patent_app_number] => 7/725864 [patent_app_country] => US [patent_app_date] => 1991-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 1917 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 62 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/229/05229664.pdf [firstpage_image] =>[orig_patent_app_number] => 725864 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/725864
Programmable differentiator delay Jul 2, 1991 Issued
Array ( [id] => 3055646 [patent_doc_number] => 05287317 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-02-15 [patent_title] => 'Non-volatile semiconductor memory device with over-erasing prevention' [patent_app_type] => 1 [patent_app_number] => 7/721773 [patent_app_country] => US [patent_app_date] => 1991-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 15 [patent_no_of_words] => 4688 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/287/05287317.pdf [firstpage_image] =>[orig_patent_app_number] => 721773 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/721773
Non-volatile semiconductor memory device with over-erasing prevention Jun 27, 1991 Issued
Array ( [id] => 3102029 [patent_doc_number] => 05313343 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-05-17 [patent_title] => 'Magnetic recording or reproducing apparatus' [patent_app_type] => 1 [patent_app_number] => 7/720749 [patent_app_country] => US [patent_app_date] => 1991-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 6801 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/313/05313343.pdf [firstpage_image] =>[orig_patent_app_number] => 720749 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/720749
Magnetic recording or reproducing apparatus Jun 24, 1991 Issued
Array ( [id] => 2920401 [patent_doc_number] => 05179294 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-12 [patent_title] => 'Process independent digital clock signal shaping network' [patent_app_type] => 1 [patent_app_number] => 7/720079 [patent_app_country] => US [patent_app_date] => 1991-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 5200 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 305 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/179/05179294.pdf [firstpage_image] =>[orig_patent_app_number] => 720079 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/720079
Process independent digital clock signal shaping network Jun 23, 1991 Issued
Array ( [id] => 2938120 [patent_doc_number] => 05220201 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-15 [patent_title] => 'Phase-locked signal generator' [patent_app_type] => 1 [patent_app_number] => 7/718254 [patent_app_country] => US [patent_app_date] => 1991-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 44 [patent_no_of_words] => 11333 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/220/05220201.pdf [firstpage_image] =>[orig_patent_app_number] => 718254 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/718254
Phase-locked signal generator Jun 19, 1991 Issued
07/717440 EDGE INTEGRATING PHASE DETECTOR Jun 18, 1991 Abandoned
07/717004 REGULATED DELAY LINE Jun 17, 1991 Abandoned
Array ( [id] => 2923436 [patent_doc_number] => 05206548 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-27 [patent_title] => 'Noise reduction circuit' [patent_app_type] => 1 [patent_app_number] => 7/716775 [patent_app_country] => US [patent_app_date] => 1991-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 15 [patent_no_of_words] => 4521 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/206/05206548.pdf [firstpage_image] =>[orig_patent_app_number] => 716775 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/716775
Noise reduction circuit Jun 17, 1991 Issued
Array ( [id] => 2955964 [patent_doc_number] => 05255240 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-19 [patent_title] => 'One stage word line decoder/driver with speed-up Darlington drive and adjustable pull down' [patent_app_type] => 1 [patent_app_number] => 7/714442 [patent_app_country] => US [patent_app_date] => 1991-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 4135 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 40 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/255/05255240.pdf [firstpage_image] =>[orig_patent_app_number] => 714442 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/714442
One stage word line decoder/driver with speed-up Darlington drive and adjustable pull down Jun 12, 1991 Issued
Array ( [id] => 3086691 [patent_doc_number] => 05297096 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-03-22 [patent_title] => 'Nonvolatile semiconductor memory device and data erasing method thereof' [patent_app_type] => 1 [patent_app_number] => 7/711547 [patent_app_country] => US [patent_app_date] => 1991-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 26 [patent_no_of_words] => 25791 [patent_no_of_claims] => 55 [patent_no_of_ind_claims] => 13 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/297/05297096.pdf [firstpage_image] =>[orig_patent_app_number] => 711547 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/711547
Nonvolatile semiconductor memory device and data erasing method thereof Jun 6, 1991 Issued
Array ( [id] => 2844951 [patent_doc_number] => 05172010 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-12-15 [patent_title] => 'Clock chopper/stretcher for high end machines' [patent_app_type] => 1 [patent_app_number] => 7/712270 [patent_app_country] => US [patent_app_date] => 1991-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 3701 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/172/05172010.pdf [firstpage_image] =>[orig_patent_app_number] => 712270 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/712270
Clock chopper/stretcher for high end machines Jun 6, 1991 Issued
Array ( [id] => 2953977 [patent_doc_number] => 05255136 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-19 [patent_title] => 'High capacity submicro-winchester fixed disk drive' [patent_app_type] => 1 [patent_app_number] => 7/710171 [patent_app_country] => US [patent_app_date] => 1991-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 20 [patent_no_of_words] => 19333 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 437 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/255/05255136.pdf [firstpage_image] =>[orig_patent_app_number] => 710171 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/710171
High capacity submicro-winchester fixed disk drive Jun 3, 1991 Issued
07/710246 OUTPUT DRIVER FOR REDUCING TRANSIENT NOISE IN INTEGRATED CIRCUITS Jun 2, 1991 Abandoned
Array ( [id] => 2964360 [patent_doc_number] => 05198710 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-03-30 [patent_title] => 'Bi-directional digital noise glitch filter' [patent_app_type] => 1 [patent_app_number] => 7/707517 [patent_app_country] => US [patent_app_date] => 1991-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 3197 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/198/05198710.pdf [firstpage_image] =>[orig_patent_app_number] => 707517 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/707517
Bi-directional digital noise glitch filter May 29, 1991 Issued
Array ( [id] => 3055625 [patent_doc_number] => 05287316 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-02-15 [patent_title] => 'Optical FIFO buffer' [patent_app_type] => 1 [patent_app_number] => 7/705387 [patent_app_country] => US [patent_app_date] => 1991-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 8554 [patent_no_of_claims] => 7 [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] => patents/05/287/05287316.pdf [firstpage_image] =>[orig_patent_app_number] => 705387 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/705387
Optical FIFO buffer May 23, 1991 Issued
Array ( [id] => 2883361 [patent_doc_number] => 05119037 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-02 [patent_title] => 'High speed phase-lock loop device' [patent_app_type] => 1 [patent_app_number] => 7/704531 [patent_app_country] => US [patent_app_date] => 1991-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2776 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 276 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/119/05119037.pdf [firstpage_image] =>[orig_patent_app_number] => 704531 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/704531
High speed phase-lock loop device May 22, 1991 Issued
Array ( [id] => 2985437 [patent_doc_number] => 05204631 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-20 [patent_title] => 'System and method for automatic thresholding of signals in the presence of Gaussian noise' [patent_app_type] => 1 [patent_app_number] => 7/703072 [patent_app_country] => US [patent_app_date] => 1991-05-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3420 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/204/05204631.pdf [firstpage_image] =>[orig_patent_app_number] => 703072 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/703072
System and method for automatic thresholding of signals in the presence of Gaussian noise May 19, 1991 Issued
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