Search

Heng M. Chan

Examiner (ID: 13079, Phone: (571)270-5859 , Office: P/1725 )

Most Active Art Unit
1725
Art Unit(s)
1728, 1793, 1725, 1795
Total Applications
465
Issued Applications
287
Pending Applications
37
Abandoned Applications
157

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 5235771 [patent_doc_number] => 20070127927 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-06-07 [patent_title] => 'COMMUNICATION OPTICAL SYSTEM AND FREE-SPACE OPTICS COMMUNICATION APPARATUS' [patent_app_type] => utility [patent_app_number] => 11/670201 [patent_app_country] => US [patent_app_date] => 2007-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4433 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0127/20070127927.pdf [firstpage_image] =>[orig_patent_app_number] => 11670201 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/670201
COMMUNICATION OPTICAL SYSTEM AND FREE-SPACE OPTICS COMMUNICATION APPARATUS Jan 31, 2007 Abandoned
Array ( [id] => 5595472 [patent_doc_number] => 20060159388 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-07-20 [patent_title] => 'Optical path switch apparatus of optical LAN system' [patent_app_type] => utility [patent_app_number] => 11/148276 [patent_app_country] => US [patent_app_date] => 2005-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5192 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0159/20060159388.pdf [firstpage_image] =>[orig_patent_app_number] => 11148276 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/148276
Optical path switch apparatus of optical LAN system Jun 8, 2005 Abandoned
Array ( [id] => 595306 [patent_doc_number] => 07450860 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-11-11 [patent_title] => 'Apparatus and method for frequency-shift-keying optical transmission' [patent_app_type] => utility [patent_app_number] => 11/147705 [patent_app_country] => US [patent_app_date] => 2005-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2917 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/450/07450860.pdf [firstpage_image] =>[orig_patent_app_number] => 11147705 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/147705
Apparatus and method for frequency-shift-keying optical transmission Jun 7, 2005 Issued
Array ( [id] => 5776003 [patent_doc_number] => 20060104643 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-05-18 [patent_title] => 'Optical network for bi-directional wireless communication' [patent_app_type] => utility [patent_app_number] => 11/147638 [patent_app_country] => US [patent_app_date] => 2005-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2233 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0104/20060104643.pdf [firstpage_image] =>[orig_patent_app_number] => 11147638 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/147638
Optical network for bi-directional wireless communication Jun 7, 2005 Abandoned
Array ( [id] => 798791 [patent_doc_number] => 07428384 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-09-23 [patent_title] => 'Optical router' [patent_app_type] => utility [patent_app_number] => 11/025278 [patent_app_country] => US [patent_app_date] => 2004-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 17 [patent_no_of_words] => 3097 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 383 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/428/07428384.pdf [firstpage_image] =>[orig_patent_app_number] => 11025278 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/025278
Optical router Dec 27, 2004 Issued
Array ( [id] => 599259 [patent_doc_number] => 07437084 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-10-14 [patent_title] => 'Infrared radiation receiving circuit, electronic device, and infrared radiation receiving method' [patent_app_type] => utility [patent_app_number] => 10/968968 [patent_app_country] => US [patent_app_date] => 2004-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 11472 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/437/07437084.pdf [firstpage_image] =>[orig_patent_app_number] => 10968968 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/968968
Infrared radiation receiving circuit, electronic device, and infrared radiation receiving method Oct 20, 2004 Issued
Array ( [id] => 6990297 [patent_doc_number] => 20050089334 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-04-28 [patent_title] => 'Protocol independent managed optical system' [patent_app_type] => utility [patent_app_number] => 10/956366 [patent_app_country] => US [patent_app_date] => 2004-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5252 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0089/20050089334.pdf [firstpage_image] =>[orig_patent_app_number] => 10956366 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/956366
Protocol independent managed optical system Oct 3, 2004 Abandoned
Array ( [id] => 6990296 [patent_doc_number] => 20050089333 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-04-28 [patent_title] => 'Combining high-speed data and analog video on an optical fiber' [patent_app_type] => utility [patent_app_number] => 10/956363 [patent_app_country] => US [patent_app_date] => 2004-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2467 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0089/20050089333.pdf [firstpage_image] =>[orig_patent_app_number] => 10956363 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/956363
Combining high-speed data and analog video on an optical fiber Oct 3, 2004 Abandoned
Array ( [id] => 6990294 [patent_doc_number] => 20050089331 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-04-28 [patent_title] => 'Assured connectivity fiber-optic communications link' [patent_app_type] => utility [patent_app_number] => 10/956339 [patent_app_country] => US [patent_app_date] => 2004-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2830 [patent_no_of_claims] => 42 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0089/20050089331.pdf [firstpage_image] =>[orig_patent_app_number] => 10956339 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/956339
Assured connectivity fiber-optic communications link Oct 3, 2004 Abandoned
Array ( [id] => 880617 [patent_doc_number] => 07359637 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-04-15 [patent_title] => 'Self-healing passive optical network' [patent_app_type] => utility [patent_app_number] => 10/901274 [patent_app_country] => US [patent_app_date] => 2004-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5134 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 229 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/359/07359637.pdf [firstpage_image] =>[orig_patent_app_number] => 10901274 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/901274
Self-healing passive optical network Jul 27, 2004 Issued
Array ( [id] => 6938289 [patent_doc_number] => 20050111851 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-05-26 [patent_title] => 'Differential polarization shift-keying optical transmission system' [patent_app_type] => utility [patent_app_number] => 10/901277 [patent_app_country] => US [patent_app_date] => 2004-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 2829 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0111/20050111851.pdf [firstpage_image] =>[orig_patent_app_number] => 10901277 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/901277
Differential polarization shift-keying optical transmission system Jul 27, 2004 Abandoned
Array ( [id] => 378220 [patent_doc_number] => 07313324 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2007-12-25 [patent_title] => 'SONET outage impact measurement technique' [patent_app_type] => utility [patent_app_number] => 10/899408 [patent_app_country] => US [patent_app_date] => 2004-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2628 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/313/07313324.pdf [firstpage_image] =>[orig_patent_app_number] => 10899408 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/899408
SONET outage impact measurement technique Jul 25, 2004 Issued
Array ( [id] => 896248 [patent_doc_number] => 07346277 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-03-18 [patent_title] => 'Joint-layer restoration in packet-over-optical networks' [patent_app_type] => utility [patent_app_number] => 10/899496 [patent_app_country] => US [patent_app_date] => 2004-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 9872 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/346/07346277.pdf [firstpage_image] =>[orig_patent_app_number] => 10899496 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/899496
Joint-layer restoration in packet-over-optical networks Jul 25, 2004 Issued
Array ( [id] => 5769066 [patent_doc_number] => 20050265720 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-12-01 [patent_title] => 'Wavelength division multiplexing add/drop system employing optical switches and interleavers' [patent_app_type] => utility [patent_app_number] => 10/857092 [patent_app_country] => US [patent_app_date] => 2004-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 55 [patent_figures_cnt] => 55 [patent_no_of_words] => 7085 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0265/20050265720.pdf [firstpage_image] =>[orig_patent_app_number] => 10857092 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/857092
Wavelength division multiplexing add/drop system employing optical switches and interleavers May 27, 2004 Abandoned
Array ( [id] => 5769061 [patent_doc_number] => 20050265717 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-12-01 [patent_title] => 'Opto-electronic device testing apparatus and method' [patent_app_type] => utility [patent_app_number] => 10/857193 [patent_app_country] => US [patent_app_date] => 2004-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 7036 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0265/20050265717.pdf [firstpage_image] =>[orig_patent_app_number] => 10857193 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/857193
Opto-electronic device testing apparatus and method May 27, 2004 Abandoned
Array ( [id] => 7341807 [patent_doc_number] => 20040246557 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-09 [patent_title] => 'Integrated optoelectronic device comprising an electroabsorption modulator and an electronic element for controlling the modulator' [patent_app_type] => new [patent_app_number] => 10/855332 [patent_app_country] => US [patent_app_date] => 2004-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3145 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0246/20040246557.pdf [firstpage_image] =>[orig_patent_app_number] => 10855332 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/855332
Integrated optoelectronic device comprising an electroabsorption modulator and an electronic element for controlling the modulator May 27, 2004 Abandoned
Array ( [id] => 378229 [patent_doc_number] => 07313333 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-12-25 [patent_title] => 'Apparatus for controlling decision threshold voltage to optical receiver' [patent_app_type] => utility [patent_app_number] => 10/815064 [patent_app_country] => US [patent_app_date] => 2004-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 3171 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/313/07313333.pdf [firstpage_image] =>[orig_patent_app_number] => 10815064 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/815064
Apparatus for controlling decision threshold voltage to optical receiver Mar 30, 2004 Issued
Array ( [id] => 7325961 [patent_doc_number] => 20040252930 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-16 [patent_title] => 'Sensor or a microphone having such a sensor' [patent_app_type] => new [patent_app_number] => 10/815503 [patent_app_country] => US [patent_app_date] => 2004-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1409 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0252/20040252930.pdf [firstpage_image] =>[orig_patent_app_number] => 10815503 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/815503
Sensor or a microphone having such a sensor Mar 30, 2004 Abandoned
Array ( [id] => 406435 [patent_doc_number] => 07289737 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-10-30 [patent_title] => 'Communication optical system and free-space optics communication apparatus' [patent_app_type] => utility [patent_app_number] => 10/816010 [patent_app_country] => US [patent_app_date] => 2004-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4275 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/289/07289737.pdf [firstpage_image] =>[orig_patent_app_number] => 10816010 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/816010
Communication optical system and free-space optics communication apparatus Mar 30, 2004 Issued
Array ( [id] => 414023 [patent_doc_number] => 07283752 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-10-16 [patent_title] => 'Method and apparatus for PMD/PDL/PDG mitigation' [patent_app_type] => utility [patent_app_number] => 10/813960 [patent_app_country] => US [patent_app_date] => 2004-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 18 [patent_no_of_words] => 4396 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 28 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/283/07283752.pdf [firstpage_image] =>[orig_patent_app_number] => 10813960 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/813960
Method and apparatus for PMD/PDL/PDG mitigation Mar 30, 2004 Issued
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