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] => 2899907 [patent_doc_number] => 05241228 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-08-31 [patent_title] => 'UHF transistor mixer circuit' [patent_app_type] => 1 [patent_app_number] => 7/573455 [patent_app_country] => US [patent_app_date] => 1990-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 1428 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/241/05241228.pdf [firstpage_image] =>[orig_patent_app_number] => 573455 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/573455
UHF transistor mixer circuit Aug 26, 1990 Issued
Array ( [id] => 2975032 [patent_doc_number] => 05258721 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-02 [patent_title] => 'Ring signal detection circuit' [patent_app_type] => 1 [patent_app_number] => 7/573413 [patent_app_country] => US [patent_app_date] => 1990-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 28 [patent_no_of_words] => 10775 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/258/05258721.pdf [firstpage_image] =>[orig_patent_app_number] => 573413 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/573413
Ring signal detection circuit Aug 26, 1990 Issued
07/570491 IC AMPLIFIER WITH SATURATION DETECTION Aug 20, 1990 Abandoned
Array ( [id] => 2770379 [patent_doc_number] => 05006739 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-04-09 [patent_title] => 'Capacitive load drive circuit' [patent_app_type] => 1 [patent_app_number] => 7/567703 [patent_app_country] => US [patent_app_date] => 1990-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 17 [patent_no_of_words] => 7748 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/006/05006739.pdf [firstpage_image] =>[orig_patent_app_number] => 567703 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/567703
Capacitive load drive circuit Aug 14, 1990 Issued
Array ( [id] => 2811665 [patent_doc_number] => 05157341 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-10-20 [patent_title] => 'Phase detector' [patent_app_type] => 1 [patent_app_number] => 7/565065 [patent_app_country] => US [patent_app_date] => 1990-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 1650 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/157/05157341.pdf [firstpage_image] =>[orig_patent_app_number] => 565065 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/565065
Phase detector Aug 9, 1990 Issued
07/565197 CLOCK GENERATOR CIRCUIT PROVIDING REDUCED CURRENT CONSUMPTION Aug 8, 1990 Abandoned
Array ( [id] => 2721129 [patent_doc_number] => 05008568 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-04-16 [patent_title] => 'CMOS output driver' [patent_app_type] => 1 [patent_app_number] => 7/565169 [patent_app_country] => US [patent_app_date] => 1990-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3582 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/008/05008568.pdf [firstpage_image] =>[orig_patent_app_number] => 565169 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/565169
CMOS output driver Aug 7, 1990 Issued
Array ( [id] => 2818217 [patent_doc_number] => 05079454 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-01-07 [patent_title] => 'Temperature compensated FET power detector' [patent_app_type] => 1 [patent_app_number] => 7/564717 [patent_app_country] => US [patent_app_date] => 1990-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2084 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/079/05079454.pdf [firstpage_image] =>[orig_patent_app_number] => 564717 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/564717
Temperature compensated FET power detector Aug 7, 1990 Issued
07/557603 METHOD FOR DETECTING FAULTY REGENERATORS IN T1 AND T1C PCM COMMUNICATION SYSTEMS Jul 22, 1990 Abandoned
Array ( [id] => 2753147 [patent_doc_number] => 05030858 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-07-09 [patent_title] => 'Prevention against noise of digital audio circuit' [patent_app_type] => 1 [patent_app_number] => 7/554096 [patent_app_country] => US [patent_app_date] => 1990-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 2194 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 266 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/030/05030858.pdf [firstpage_image] =>[orig_patent_app_number] => 554096 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/554096
Prevention against noise of digital audio circuit Jul 18, 1990 Issued
07/554653 MONOSTABLE MULTIVIBRATOR Jul 18, 1990 Abandoned
07/555816 VARIABLE PULSE GENERATOR Jul 17, 1990 Abandoned
Array ( [id] => 2790300 [patent_doc_number] => 05093582 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-03 [patent_title] => 'Pulse-width modulation waveform generator' [patent_app_type] => 1 [patent_app_number] => 7/547129 [patent_app_country] => US [patent_app_date] => 1990-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 1456 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/093/05093582.pdf [firstpage_image] =>[orig_patent_app_number] => 547129 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/547129
Pulse-width modulation waveform generator Jul 2, 1990 Issued
Array ( [id] => 2835725 [patent_doc_number] => 05099202 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-24 [patent_title] => 'Phase shift generator' [patent_app_type] => 1 [patent_app_number] => 7/551812 [patent_app_country] => US [patent_app_date] => 1990-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4735 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 357 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/099/05099202.pdf [firstpage_image] =>[orig_patent_app_number] => 551812 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/551812
Phase shift generator Jul 1, 1990 Issued
07/545232 LOW CURRENT SWITCHED CAPACITOR CIRCUIT Jun 27, 1990 Abandoned
Array ( [id] => 2672665 [patent_doc_number] => 05070262 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-12-03 [patent_title] => 'Signal transmission circuit' [patent_app_type] => 1 [patent_app_number] => 7/541176 [patent_app_country] => US [patent_app_date] => 1990-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3088 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/070/05070262.pdf [firstpage_image] =>[orig_patent_app_number] => 541176 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/541176
Signal transmission circuit Jun 19, 1990 Issued
07/528223 CIRCUITRY FOR THE TIMING OF DATA OUTPUT ENABLE PULSES May 23, 1990 Abandoned
07/525799 DETECTOR AND INTEGRATED CIRCUIT DEVICE INCLUDING CHARGE PUMP CIRCUITS FOR HIGH LOAD CONDITIONS May 17, 1990 Abandoned
Array ( [id] => 2674113 [patent_doc_number] => 05047674 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-09-10 [patent_title] => 'Gallium arsenide antenna switch having voltage multiplier bias circuit' [patent_app_type] => 1 [patent_app_number] => 7/517899 [patent_app_country] => US [patent_app_date] => 1990-05-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1624 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/047/05047674.pdf [firstpage_image] =>[orig_patent_app_number] => 517899 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/517899
Gallium arsenide antenna switch having voltage multiplier bias circuit May 1, 1990 Issued
Array ( [id] => 2774908 [patent_doc_number] => 04985640 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-15 [patent_title] => 'Apparatus for generating computer clock pulses' [patent_app_type] => 1 [patent_app_number] => 7/472598 [patent_app_country] => US [patent_app_date] => 1990-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 4237 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 312 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/985/04985640.pdf [firstpage_image] =>[orig_patent_app_number] => 472598 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/472598
Apparatus for generating computer clock pulses Apr 3, 1990 Issued
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