Search

Ko Hung Chan

Examiner (ID: 18286, Phone: (571)272-6816 , Office: P/3631 )

Most Active Art Unit
3631
Art Unit(s)
3637, 3505, 3632, 3631, 2899
Total Applications
2342
Issued Applications
1612
Pending Applications
102
Abandoned Applications
655

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 3668237 [patent_doc_number] => 05625323 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-04-29 [patent_title] => 'FET gate bias circuit' [patent_app_type] => 1 [patent_app_number] => 8/544606 [patent_app_country] => US [patent_app_date] => 1995-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 4059 [patent_no_of_claims] => 5 [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/05/625/05625323.pdf [firstpage_image] =>[orig_patent_app_number] => 544606 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/544606
FET gate bias circuit Oct 17, 1995 Issued
Array ( [id] => 3661252 [patent_doc_number] => 05623227 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-04-22 [patent_title] => 'Amplifier circuit and method of controlling an amplifier for use in a radio frequency communication system' [patent_app_type] => 1 [patent_app_number] => 8/544049 [patent_app_country] => US [patent_app_date] => 1995-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 3804 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/623/05623227.pdf [firstpage_image] =>[orig_patent_app_number] => 544049 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/544049
Amplifier circuit and method of controlling an amplifier for use in a radio frequency communication system Oct 16, 1995 Issued
Array ( [id] => 3625906 [patent_doc_number] => 05642074 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-06-24 [patent_title] => 'Amplifier circuit with reduced turn-on and turn-off transients' [patent_app_type] => 1 [patent_app_number] => 8/542596 [patent_app_country] => US [patent_app_date] => 1995-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4018 [patent_no_of_claims] => 54 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/642/05642074.pdf [firstpage_image] =>[orig_patent_app_number] => 542596 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/542596
Amplifier circuit with reduced turn-on and turn-off transients Oct 12, 1995 Issued
Array ( [id] => 3634939 [patent_doc_number] => 05686863 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-11-11 [patent_title] => 'Tunable tone control circuit and a device and method for tuning the RC constants' [patent_app_type] => 1 [patent_app_number] => 8/536897 [patent_app_country] => US [patent_app_date] => 1995-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2448 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/686/05686863.pdf [firstpage_image] =>[orig_patent_app_number] => 536897 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/536897
Tunable tone control circuit and a device and method for tuning the RC constants Sep 28, 1995 Issued
Array ( [id] => 3688153 [patent_doc_number] => 05633612 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-05-27 [patent_title] => 'Precision current mirror circuit' [patent_app_type] => 1 [patent_app_number] => 8/536178 [patent_app_country] => US [patent_app_date] => 1995-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3019 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/633/05633612.pdf [firstpage_image] =>[orig_patent_app_number] => 536178 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/536178
Precision current mirror circuit Sep 28, 1995 Issued
Array ( [id] => 3625959 [patent_doc_number] => 05642078 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-06-24 [patent_title] => 'Amplifier having frequency compensation by gain degeneration' [patent_app_type] => 1 [patent_app_number] => 8/535977 [patent_app_country] => US [patent_app_date] => 1995-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 4090 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/642/05642078.pdf [firstpage_image] =>[orig_patent_app_number] => 535977 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/535977
Amplifier having frequency compensation by gain degeneration Sep 28, 1995 Issued
Array ( [id] => 3625970 [patent_doc_number] => 05642079 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-06-24 [patent_title] => 'Amplifier with pole/zero compensation' [patent_app_type] => 1 [patent_app_number] => 8/536895 [patent_app_country] => US [patent_app_date] => 1995-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2233 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 216 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/642/05642079.pdf [firstpage_image] =>[orig_patent_app_number] => 536895 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/536895
Amplifier with pole/zero compensation Sep 28, 1995 Issued
Array ( [id] => 3626233 [patent_doc_number] => 05614864 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-03-25 [patent_title] => 'Single-ended to differential converter with relaxed common-mode input requirements' [patent_app_type] => 1 [patent_app_number] => 8/536405 [patent_app_country] => US [patent_app_date] => 1995-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 1579 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/614/05614864.pdf [firstpage_image] =>[orig_patent_app_number] => 536405 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/536405
Single-ended to differential converter with relaxed common-mode input requirements Sep 28, 1995 Issued
Array ( [id] => 3514985 [patent_doc_number] => 05587689 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-12-24 [patent_title] => 'Voltage controlled amplifier with a negative resistance circuit for reducing non-linearity distortion' [patent_app_type] => 1 [patent_app_number] => 8/536497 [patent_app_country] => US [patent_app_date] => 1995-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3111 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/587/05587689.pdf [firstpage_image] =>[orig_patent_app_number] => 536497 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/536497
Voltage controlled amplifier with a negative resistance circuit for reducing non-linearity distortion Sep 27, 1995 Issued
Array ( [id] => 3608383 [patent_doc_number] => 05578967 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-11-26 [patent_title] => 'Circuit compensating for capacitance at inverting input of current feedback amplifier' [patent_app_type] => 1 [patent_app_number] => 8/535936 [patent_app_country] => US [patent_app_date] => 1995-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 1910 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/578/05578967.pdf [firstpage_image] =>[orig_patent_app_number] => 535936 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/535936
Circuit compensating for capacitance at inverting input of current feedback amplifier Sep 27, 1995 Issued
Array ( [id] => 3661331 [patent_doc_number] => 05623232 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-04-22 [patent_title] => 'Topography for integrated circuit operational amplifier having low impedance input for current feedback' [patent_app_type] => 1 [patent_app_number] => 8/534046 [patent_app_country] => US [patent_app_date] => 1995-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4437 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 335 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/623/05623232.pdf [firstpage_image] =>[orig_patent_app_number] => 534046 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/534046
Topography for integrated circuit operational amplifier having low impedance input for current feedback Sep 25, 1995 Issued
Array ( [id] => 3663651 [patent_doc_number] => 05627495 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-05-06 [patent_title] => 'Topography for integrated circuit operational amplifier' [patent_app_type] => 1 [patent_app_number] => 8/534039 [patent_app_country] => US [patent_app_date] => 1995-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 6774 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/627/05627495.pdf [firstpage_image] =>[orig_patent_app_number] => 534039 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/534039
Topography for integrated circuit operational amplifier Sep 25, 1995 Issued
Array ( [id] => 3627303 [patent_doc_number] => 05689210 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-11-18 [patent_title] => 'Active distributed signal sampler' [patent_app_type] => 1 [patent_app_number] => 8/531078 [patent_app_country] => US [patent_app_date] => 1995-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 3170 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/689/05689210.pdf [firstpage_image] =>[orig_patent_app_number] => 531078 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/531078
Active distributed signal sampler Sep 19, 1995 Issued
Array ( [id] => 3712151 [patent_doc_number] => 05654670 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-08-05 [patent_title] => 'Active distributed signal injector' [patent_app_type] => 1 [patent_app_number] => 8/531976 [patent_app_country] => US [patent_app_date] => 1995-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 3334 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/654/05654670.pdf [firstpage_image] =>[orig_patent_app_number] => 531976 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/531976
Active distributed signal injector Sep 19, 1995 Issued
Array ( [id] => 3707851 [patent_doc_number] => 05646575 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-07-08 [patent_title] => 'Composite precision, high-frequency rail-to-rail amplifier' [patent_app_type] => 1 [patent_app_number] => 8/528636 [patent_app_country] => US [patent_app_date] => 1995-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 9 [patent_no_of_words] => 2192 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 48 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/646/05646575.pdf [firstpage_image] =>[orig_patent_app_number] => 528636 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/528636
Composite precision, high-frequency rail-to-rail amplifier Sep 13, 1995 Issued
Array ( [id] => 3733840 [patent_doc_number] => 05652547 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-07-29 [patent_title] => 'Current comparator automatic output control' [patent_app_type] => 1 [patent_app_number] => 8/526186 [patent_app_country] => US [patent_app_date] => 1995-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3721 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/652/05652547.pdf [firstpage_image] =>[orig_patent_app_number] => 526186 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/526186
Current comparator automatic output control Sep 10, 1995 Issued
08/525809 LOW DISTORTION AMPLIFIER CIRCUIT WITH IMPROVED OUTPUT POWER Sep 7, 1995 Abandoned
Array ( [id] => 3661307 [patent_doc_number] => 05623230 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-04-22 [patent_title] => 'Low-offset, buffer amplifier' [patent_app_type] => 1 [patent_app_number] => 8/524559 [patent_app_country] => US [patent_app_date] => 1995-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 1656 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/623/05623230.pdf [firstpage_image] =>[orig_patent_app_number] => 524559 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/524559
Low-offset, buffer amplifier Sep 6, 1995 Issued
Array ( [id] => 3559021 [patent_doc_number] => 05574402 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-11-12 [patent_title] => 'Monolithic integrated circuit device having microwave power amplifier including a matching circuit using distributed lines' [patent_app_type] => 1 [patent_app_number] => 8/524188 [patent_app_country] => US [patent_app_date] => 1995-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3599 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/574/05574402.pdf [firstpage_image] =>[orig_patent_app_number] => 524188 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/524188
Monolithic integrated circuit device having microwave power amplifier including a matching circuit using distributed lines Sep 5, 1995 Issued
Array ( [id] => 3894654 [patent_doc_number] => 05724006 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-03-03 [patent_title] => 'Circuit arrangement with controllable transmission characteristics' [patent_app_type] => 1 [patent_app_number] => 8/523698 [patent_app_country] => US [patent_app_date] => 1995-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 7564 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/724/05724006.pdf [firstpage_image] =>[orig_patent_app_number] => 523698 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/523698
Circuit arrangement with controllable transmission characteristics Sep 4, 1995 Issued
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