Search

Daniel D. Chang

Examiner (ID: 18728, Phone: (571)272-1801 , Office: P/2844 )

Most Active Art Unit
2844
Art Unit(s)
2844, 2819, 0
Total Applications
2520
Issued Applications
2308
Pending Applications
99
Abandoned Applications
143

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 1933679 [patent_doc_number] => 04350935 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-09-21 [patent_title] => 'Gas discharge lamp control' [patent_app_type] => 1 [patent_app_number] => 6/135091 [patent_app_country] => US [patent_app_date] => 1980-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 19 [patent_no_of_words] => 14332 [patent_no_of_claims] => 84 [patent_no_of_ind_claims] => 17 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/350/04350935.pdf [firstpage_image] =>[orig_patent_app_number] => 135091 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/135091
Gas discharge lamp control Mar 27, 1980 Issued
Array ( [id] => 1998133 [patent_doc_number] => 04323820 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-04-06 [patent_title] => 'Emergency lighting system' [patent_app_type] => 1 [patent_app_number] => 6/134650 [patent_app_country] => US [patent_app_date] => 1980-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 6962 [patent_no_of_claims] => 48 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/323/04323820.pdf [firstpage_image] =>[orig_patent_app_number] => 134650 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/134650
Emergency lighting system Mar 26, 1980 Issued
Array ( [id] => 1995291 [patent_doc_number] => 04329623 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-05-11 [patent_title] => 'Electronic flash apparatus' [patent_app_type] => 1 [patent_app_number] => 6/134423 [patent_app_country] => US [patent_app_date] => 1980-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 3161 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 277 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/329/04329623.pdf [firstpage_image] =>[orig_patent_app_number] => 134423 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/134423
Electronic flash apparatus Mar 26, 1980 Issued
Array ( [id] => 1865117 [patent_doc_number] => 04275335 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1981-06-23 [patent_title] => 'Constant light intensity electronic flash device' [patent_app_type] => 1 [patent_app_number] => 6/134297 [patent_app_country] => US [patent_app_date] => 1980-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 3046 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/275/04275335.pdf [firstpage_image] =>[orig_patent_app_number] => 134297 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/134297
Constant light intensity electronic flash device Mar 25, 1980 Issued
Array ( [id] => 1865504 [patent_doc_number] => 04295079 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1981-10-13 [patent_title] => 'Lamp circuit with disconnected lamp detecting device' [patent_app_type] => 1 [patent_app_number] => 6/133935 [patent_app_country] => US [patent_app_date] => 1980-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 11 [patent_no_of_words] => 4614 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/295/04295079.pdf [firstpage_image] =>[orig_patent_app_number] => 133935 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/133935
Lamp circuit with disconnected lamp detecting device Mar 24, 1980 Issued
Array ( [id] => 1885869 [patent_doc_number] => 04297617 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1981-10-27 [patent_title] => 'Light producing device' [patent_app_type] => 1 [patent_app_number] => 6/132742 [patent_app_country] => US [patent_app_date] => 1980-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2313 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 221 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/297/04297617.pdf [firstpage_image] =>[orig_patent_app_number] => 132742 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/132742
Light producing device Mar 23, 1980 Issued
Array ( [id] => 1947506 [patent_doc_number] => 04336480 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-06-22 [patent_title] => 'Cathode ray tube' [patent_app_type] => 1 [patent_app_number] => 6/132161 [patent_app_country] => US [patent_app_date] => 1980-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 3638 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/336/04336480.pdf [firstpage_image] =>[orig_patent_app_number] => 132161 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/132161
Cathode ray tube Mar 19, 1980 Issued
Array ( [id] => 1955409 [patent_doc_number] => 04326150 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-04-20 [patent_title] => 'Cathode ray tube device for display system' [patent_app_type] => 1 [patent_app_number] => 6/132163 [patent_app_country] => US [patent_app_date] => 1980-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2604 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/326/04326150.pdf [firstpage_image] =>[orig_patent_app_number] => 132163 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/132163
Cathode ray tube device for display system Mar 19, 1980 Issued
Array ( [id] => 1964962 [patent_doc_number] => 04315193 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-02-09 [patent_title] => 'High-pressure mercury-vapor lamp which has both improved color rendition and light output' [patent_app_type] => 1 [patent_app_number] => 6/131305 [patent_app_country] => US [patent_app_date] => 1980-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2295 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 344 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/315/04315193.pdf [firstpage_image] =>[orig_patent_app_number] => 131305 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/131305
High-pressure mercury-vapor lamp which has both improved color rendition and light output Mar 17, 1980 Issued
Array ( [id] => 1885865 [patent_doc_number] => 04297616 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1981-10-27 [patent_title] => 'Fluorescent lamp with incandescent ballasting systems' [patent_app_type] => 1 [patent_app_number] => 6/130929 [patent_app_country] => US [patent_app_date] => 1980-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 1543 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/297/04297616.pdf [firstpage_image] =>[orig_patent_app_number] => 130929 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/130929
Fluorescent lamp with incandescent ballasting systems Mar 16, 1980 Issued
Array ( [id] => 1966518 [patent_doc_number] => 04330732 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-05-18 [patent_title] => 'Plasma ceramic coating to supply uniform sparking action in combustion engines' [patent_app_type] => 1 [patent_app_number] => 6/130577 [patent_app_country] => US [patent_app_date] => 1980-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 2305 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/330/04330732.pdf [firstpage_image] =>[orig_patent_app_number] => 130577 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/130577
Plasma ceramic coating to supply uniform sparking action in combustion engines Mar 13, 1980 Issued
Array ( [id] => 2032596 [patent_doc_number] => 04377774 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-03-22 [patent_title] => 'Electronic flash control device' [patent_app_type] => 1 [patent_app_number] => 6/129996 [patent_app_country] => US [patent_app_date] => 1980-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 14 [patent_no_of_words] => 4622 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/377/04377774.pdf [firstpage_image] =>[orig_patent_app_number] => 129996 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/129996
Electronic flash control device Mar 12, 1980 Issued
Array ( [id] => 1934753 [patent_doc_number] => 04338544 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-07-06 [patent_title] => 'Fluorescent lamp' [patent_app_type] => 1 [patent_app_number] => 6/127549 [patent_app_country] => US [patent_app_date] => 1980-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 1401 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/338/04338544.pdf [firstpage_image] =>[orig_patent_app_number] => 127549 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/127549
Fluorescent lamp Mar 5, 1980 Issued
Array ( [id] => 1920026 [patent_doc_number] => 04291254 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1981-09-22 [patent_title] => 'Discharge lamp energization circuit, particularly for audio and supersonic frequency operation of high-pressure discharge lamps' [patent_app_type] => 1 [patent_app_number] => 6/127372 [patent_app_country] => US [patent_app_date] => 1980-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3111 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 249 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/291/04291254.pdf [firstpage_image] =>[orig_patent_app_number] => 127372 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/127372
Discharge lamp energization circuit, particularly for audio and supersonic frequency operation of high-pressure discharge lamps Mar 4, 1980 Issued
Array ( [id] => 1871340 [patent_doc_number] => 04306175 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1981-12-15 [patent_title] => 'Induction plasma system' [patent_app_type] => 1 [patent_app_number] => 6/125999 [patent_app_country] => US [patent_app_date] => 1980-02-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 5 [patent_no_of_words] => 1878 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 23 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/306/04306175.pdf [firstpage_image] =>[orig_patent_app_number] => 125999 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/125999
Induction plasma system Feb 28, 1980 Issued
Array ( [id] => 1987230 [patent_doc_number] => 04360763 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-11-23 [patent_title] => 'Method and device for control of great currents particularly of the pulse type' [patent_app_type] => 1 [patent_app_number] => 6/125210 [patent_app_country] => US [patent_app_date] => 1980-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1612 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/360/04360763.pdf [firstpage_image] =>[orig_patent_app_number] => 125210 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/125210
Method and device for control of great currents particularly of the pulse type Feb 26, 1980 Issued
Array ( [id] => 1906571 [patent_doc_number] => 04302707 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1981-11-24 [patent_title] => 'Electric flash discharge device' [patent_app_type] => 1 [patent_app_number] => 6/124976 [patent_app_country] => US [patent_app_date] => 1980-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 17 [patent_no_of_words] => 3097 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/302/04302707.pdf [firstpage_image] =>[orig_patent_app_number] => 124976 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/124976
Electric flash discharge device Feb 26, 1980 Issued
Array ( [id] => 1969651 [patent_doc_number] => 04331899 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-05-25 [patent_title] => 'Spark plug' [patent_app_type] => 1 [patent_app_number] => 6/123819 [patent_app_country] => US [patent_app_date] => 1980-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 42 [patent_no_of_words] => 4410 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/331/04331899.pdf [firstpage_image] =>[orig_patent_app_number] => 123819 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/123819
Spark plug Feb 21, 1980 Issued
Array ( [id] => 1995336 [patent_doc_number] => 04329629 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-05-11 [patent_title] => 'Light source unit having a number of flash tubes' [patent_app_type] => 1 [patent_app_number] => 6/122175 [patent_app_country] => US [patent_app_date] => 1980-02-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 16 [patent_no_of_words] => 3143 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/329/04329629.pdf [firstpage_image] =>[orig_patent_app_number] => 122175 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/122175
Light source unit having a number of flash tubes Feb 18, 1980 Issued
Array ( [id] => 1949117 [patent_doc_number] => 04341977 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-07-27 [patent_title] => 'Arc spreading with initiators' [patent_app_type] => 1 [patent_app_number] => 6/117949 [patent_app_country] => US [patent_app_date] => 1980-02-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 1567 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/341/04341977.pdf [firstpage_image] =>[orig_patent_app_number] => 117949 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/117949
Arc spreading with initiators Feb 3, 1980 Issued
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