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
90/002582 ELECTROMAGNETIC OR OTHER DIRECTED ENERGY PULSE LAUNCHER Feb 13, 1992 Issued
90/002581 COMPLEMENTARY EMITTER FOLLOWER DRIVERS Feb 11, 1992 Issued
90/002577 SEMICONDUCTOR IC (INTEGRATED CIRCUITS) DEVICE Feb 11, 1992 Issued
90/002569 HIGH SPEED TTL BUFFER CIRCUIT WHICH IS RESISTIVE TO THE INFLUENCE OF ALPHA-RAYS Feb 11, 1992 Issued
90/002592 TRANSDUCER INTERFACE CIRCUIT Feb 10, 1992 Issued
90/002579 SEMICONDUCTOR INTEGRATED CIRCUIT APPARATUS HAVING PROGRAMMABLE LOGIC DEVICE Feb 9, 1992 Issued
07/832010 INTEGRATED ACTIVE LOW-PASS FILTER OF THE FIRST ORDER Feb 5, 1992 Abandoned
Array ( [id] => 3052138 [patent_doc_number] => 05304854 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-04-19 [patent_title] => 'Signal transient improvement circuit' [patent_app_type] => 1 [patent_app_number] => 7/829836 [patent_app_country] => US [patent_app_date] => 1992-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 4576 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/304/05304854.pdf [firstpage_image] =>[orig_patent_app_number] => 829836 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/829836
Signal transient improvement circuit Feb 2, 1992 Issued
90/002561 ELECTRIC CIRCUIT INTERCHANGEABLE BETWEEN SEQUENTIAL AND COMBINATION CIRCUITS Jan 30, 1992 Issued
Array ( [id] => 3024240 [patent_doc_number] => 05302909 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-04-12 [patent_title] => 'Non-linear signal processor' [patent_app_type] => 1 [patent_app_number] => 7/823929 [patent_app_country] => US [patent_app_date] => 1992-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2178 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/302/05302909.pdf [firstpage_image] =>[orig_patent_app_number] => 823929 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/823929
Non-linear signal processor Jan 21, 1992 Issued
Array ( [id] => 2891218 [patent_doc_number] => 05214329 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-05-25 [patent_title] => 'Bias current modulation for differentially coupled transistor circuit' [patent_app_type] => 1 [patent_app_number] => 7/819748 [patent_app_country] => US [patent_app_date] => 1992-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 2477 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/214/05214329.pdf [firstpage_image] =>[orig_patent_app_number] => 819748 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/819748
Bias current modulation for differentially coupled transistor circuit Jan 12, 1992 Issued
Array ( [id] => 2951096 [patent_doc_number] => 05180935 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-19 [patent_title] => 'Digital timing discriminator' [patent_app_type] => 1 [patent_app_number] => 7/821290 [patent_app_country] => US [patent_app_date] => 1992-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 7 [patent_no_of_words] => 3068 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 316 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/180/05180935.pdf [firstpage_image] =>[orig_patent_app_number] => 821290 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/821290
Digital timing discriminator Jan 9, 1992 Issued
Array ( [id] => 2856441 [patent_doc_number] => 05134308 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-07-28 [patent_title] => 'Rise and fall time signal processing system' [patent_app_type] => 1 [patent_app_number] => 7/819619 [patent_app_country] => US [patent_app_date] => 1992-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 1744 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/134/05134308.pdf [firstpage_image] =>[orig_patent_app_number] => 819619 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/819619
Rise and fall time signal processing system Jan 8, 1992 Issued
Array ( [id] => 3129074 [patent_doc_number] => 05436514 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-07-25 [patent_title] => 'High speed centralized switch matrix for a programmable logic device' [patent_app_type] => 1 [patent_app_number] => 7/816515 [patent_app_country] => US [patent_app_date] => 1991-12-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 119 [patent_figures_cnt] => 134 [patent_no_of_words] => 30462 [patent_no_of_claims] => 34 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/436/05436514.pdf [firstpage_image] =>[orig_patent_app_number] => 816515 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/816515
High speed centralized switch matrix for a programmable logic device Dec 30, 1991 Issued
Array ( [id] => 3070314 [patent_doc_number] => 05294841 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-03-15 [patent_title] => 'Method of shifting the phase of an electrical signal and a phase-shifter based on this method' [patent_app_type] => 1 [patent_app_number] => 7/813781 [patent_app_country] => US [patent_app_date] => 1991-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 15 [patent_no_of_words] => 2727 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/294/05294841.pdf [firstpage_image] =>[orig_patent_app_number] => 813781 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/813781
Method of shifting the phase of an electrical signal and a phase-shifter based on this method Dec 26, 1991 Issued
Array ( [id] => 3025422 [patent_doc_number] => 05327027 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-07-05 [patent_title] => 'Circuit for multiplying the value of a capacitor' [patent_app_type] => 1 [patent_app_number] => 7/814965 [patent_app_country] => US [patent_app_date] => 1991-12-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2688 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/327/05327027.pdf [firstpage_image] =>[orig_patent_app_number] => 814965 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/814965
Circuit for multiplying the value of a capacitor Dec 23, 1991 Issued
Array ( [id] => 2943509 [patent_doc_number] => 05191239 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-03-02 [patent_title] => 'Reset gate for a phase detector in a phase-locked loop' [patent_app_type] => 1 [patent_app_number] => 7/810683 [patent_app_country] => US [patent_app_date] => 1991-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 6542 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 329 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/191/05191239.pdf [firstpage_image] =>[orig_patent_app_number] => 810683 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/810683
Reset gate for a phase detector in a phase-locked loop Dec 18, 1991 Issued
Array ( [id] => 2981357 [patent_doc_number] => 05256912 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-26 [patent_title] => 'Synchronizer apparatus for system having at least two clock domains' [patent_app_type] => 1 [patent_app_number] => 7/812070 [patent_app_country] => US [patent_app_date] => 1991-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 6219 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/256/05256912.pdf [firstpage_image] =>[orig_patent_app_number] => 812070 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/812070
Synchronizer apparatus for system having at least two clock domains Dec 18, 1991 Issued
Array ( [id] => 2955036 [patent_doc_number] => 05262688 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-16 [patent_title] => 'Operational amplifier circuit' [patent_app_type] => 1 [patent_app_number] => 7/809872 [patent_app_country] => US [patent_app_date] => 1991-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 4765 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/262/05262688.pdf [firstpage_image] =>[orig_patent_app_number] => 809872 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/809872
Operational amplifier circuit Dec 17, 1991 Issued
Array ( [id] => 2899189 [patent_doc_number] => 05272391 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-21 [patent_title] => 'Synchronizing circuit' [patent_app_type] => 1 [patent_app_number] => 7/809933 [patent_app_country] => US [patent_app_date] => 1991-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 4469 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/272/05272391.pdf [firstpage_image] =>[orig_patent_app_number] => 809933 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/809933
Synchronizing circuit Dec 17, 1991 Issued
Menu