Search

Ching Chang

Examiner (ID: 13382, Phone: (571)272-4857 , Office: P/3748 )

Most Active Art Unit
3748
Art Unit(s)
3748, 3746
Total Applications
1871
Issued Applications
1700
Pending Applications
11
Abandoned Applications
170

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 6776083 [patent_doc_number] => 20030047163 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-03-13 [patent_title] => 'Multi-valve engine with gas exchange channel between inlet ports' [patent_app_type] => new [patent_app_number] => 10/214343 [patent_app_country] => US [patent_app_date] => 2002-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3437 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0047/20030047163.pdf [firstpage_image] =>[orig_patent_app_number] => 10214343 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/214343
Multi-valve engine with gas exchange channel between inlet ports Aug 6, 2002 Issued
Array ( [id] => 7364260 [patent_doc_number] => 20040025819 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-02-12 [patent_title] => 'Oil control valve and method of mounting the oil control valve' [patent_app_type] => new [patent_app_number] => 10/182797 [patent_app_country] => US [patent_app_date] => 2002-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 4437 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0025/20040025819.pdf [firstpage_image] =>[orig_patent_app_number] => 10182797 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/182797
Oil control valve and installing method thereof Aug 1, 2002 Issued
Array ( [id] => 1259257 [patent_doc_number] => 06659056 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-12-09 [patent_title] => 'Valve train with a single camshaft' [patent_app_type] => B2 [patent_app_number] => 10/210268 [patent_app_country] => US [patent_app_date] => 2002-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 28 [patent_figures_cnt] => 52 [patent_no_of_words] => 13981 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 189 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/659/06659056.pdf [firstpage_image] =>[orig_patent_app_number] => 10210268 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/210268
Valve train with a single camshaft Jul 31, 2002 Issued
Array ( [id] => 6747303 [patent_doc_number] => 20030041823 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-03-06 [patent_title] => 'Variable valve operating system of internal combustion engine enabling variation of valve-lift characteristic and phase' [patent_app_type] => new [patent_app_number] => 10/205198 [patent_app_country] => US [patent_app_date] => 2002-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 9722 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0041/20030041823.pdf [firstpage_image] =>[orig_patent_app_number] => 10205198 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/205198
Variable valve operating system of internal combustion engine enabling variation of valve-lift characteristic and phase Jul 25, 2002 Issued
Array ( [id] => 1291573 [patent_doc_number] => 06622674 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-09-23 [patent_title] => 'Valve timing control system for internal combustion engine' [patent_app_type] => B2 [patent_app_number] => 10/201998 [patent_app_country] => US [patent_app_date] => 2002-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3965 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/622/06622674.pdf [firstpage_image] =>[orig_patent_app_number] => 10201998 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/201998
Valve timing control system for internal combustion engine Jul 24, 2002 Issued
Array ( [id] => 6671141 [patent_doc_number] => 20030056744 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-03-27 [patent_title] => 'Four cycle engine for marine drive' [patent_app_type] => new [patent_app_number] => 10/205049 [patent_app_country] => US [patent_app_date] => 2002-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 11918 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0056/20030056744.pdf [firstpage_image] =>[orig_patent_app_number] => 10205049 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/205049
Four cycle engine for marine drive Jul 24, 2002 Issued
Array ( [id] => 6742267 [patent_doc_number] => 20030019450 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-01-30 [patent_title] => 'Valve timing control for marine engine' [patent_app_type] => new [patent_app_number] => 10/205233 [patent_app_country] => US [patent_app_date] => 2002-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 12045 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0019/20030019450.pdf [firstpage_image] =>[orig_patent_app_number] => 10205233 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/205233
Valve timing control for marine engine Jul 24, 2002 Issued
Array ( [id] => 1263898 [patent_doc_number] => 06651600 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-11-25 [patent_title] => 'Rotary piston adjuster' [patent_app_type] => B1 [patent_app_number] => 10/168472 [patent_app_country] => US [patent_app_date] => 2002-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 3997 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/651/06651600.pdf [firstpage_image] =>[orig_patent_app_number] => 10168472 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/168472
Rotary piston adjuster Jul 23, 2002 Issued
Array ( [id] => 6742270 [patent_doc_number] => 20030019453 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-01-30 [patent_title] => 'Connection between a stem end of a gas exchange valve in an internal combustion engine and an actuator body of a valve actuator' [patent_app_type] => new [patent_app_number] => 10/110709 [patent_app_country] => US [patent_app_date] => 2002-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2882 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0019/20030019453.pdf [firstpage_image] =>[orig_patent_app_number] => 10110709 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/110709
Connection between a shaft end of a gas exchange valve of an internal combustion engine and a final control element of a valve actuator Jul 22, 2002 Issued
Array ( [id] => 6771819 [patent_doc_number] => 20030015157 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-01-23 [patent_title] => 'Device and method for changing the relative rotational angle of a camshaft' [patent_app_type] => new [patent_app_number] => 10/197477 [patent_app_country] => US [patent_app_date] => 2002-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1608 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0015/20030015157.pdf [firstpage_image] =>[orig_patent_app_number] => 10197477 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/197477
Device and method for changing the relative rotational angle of a camshaft Jul 17, 2002 Issued
Array ( [id] => 6836658 [patent_doc_number] => 20030033998 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-02-20 [patent_title] => 'Hybrid multi-position cam indexer having controls located in rotor' [patent_app_type] => new [patent_app_number] => 10/198318 [patent_app_country] => US [patent_app_date] => 2002-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4056 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 290 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0033/20030033998.pdf [firstpage_image] =>[orig_patent_app_number] => 10198318 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/198318
Hybrid multi-position cam indexer having controls located in rotor Jul 17, 2002 Abandoned
Array ( [id] => 7345815 [patent_doc_number] => 20040011312 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-01-22 [patent_title] => 'Cam follower arm for an internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/198789 [patent_app_country] => US [patent_app_date] => 2002-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4902 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0011/20040011312.pdf [firstpage_image] =>[orig_patent_app_number] => 10198789 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/198789
Cam follower arm for an internal combustion engine Jul 17, 2002 Issued
Array ( [id] => 6690309 [patent_doc_number] => 20030037741 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-02-27 [patent_title] => 'Device to change the timing of gas exchange valves in an internal combustion engine, in particular a rotating piston positioning device to adjust the angle that a camshaft is rotated relative to a crankshaft' [patent_app_type] => new [patent_app_number] => 10/195577 [patent_app_country] => US [patent_app_date] => 2002-07-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5316 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 311 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0037/20030037741.pdf [firstpage_image] =>[orig_patent_app_number] => 10195577 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/195577
DEVICE TO CHANGE THE TIMING OF GAS EXCHANGE VALVES IN AN INTERNAL COMBUSTION ENGINE, IN PARTICULAR A ROTATING PISTON POSITIONING DEVICE TO ADJUST THE ANGLE THAT A CAMSHAFT IS ROTATED RELATIVE TO A CRANKSHAFT Jul 14, 2002 Issued
Array ( [id] => 1294793 [patent_doc_number] => 06619248 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-09-16 [patent_title] => 'Device for altering the control timing of gas exchange valves of an internal combustion engine, especially an apparatus for hydraulic rotational angle adjustment of a camshaft relative to a crankshaft' [patent_app_type] => B1 [patent_app_number] => 10/194760 [patent_app_country] => US [patent_app_date] => 2002-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4369 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 349 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/619/06619248.pdf [firstpage_image] =>[orig_patent_app_number] => 10194760 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/194760
Device for altering the control timing of gas exchange valves of an internal combustion engine, especially an apparatus for hydraulic rotational angle adjustment of a camshaft relative to a crankshaft Jul 11, 2002 Issued
Array ( [id] => 7015071 [patent_doc_number] => 20050217622 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-10-06 [patent_title] => 'Valve mechanism with a variable valve opening diameter' [patent_app_type] => utility [patent_app_number] => 10/399656 [patent_app_country] => US [patent_app_date] => 2002-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4327 [patent_no_of_claims] => 25 [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/A1/0217/20050217622.pdf [firstpage_image] =>[orig_patent_app_number] => 10399656 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/399656
Valve mechanism with a variable valve opening diameter Jul 11, 2002 Abandoned
Array ( [id] => 1055042 [patent_doc_number] => 06854672 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-02-15 [patent_title] => 'Air-assisted air valve for air atomized spray guns' [patent_app_type] => utility [patent_app_number] => 10/192890 [patent_app_country] => US [patent_app_date] => 2002-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2378 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/854/06854672.pdf [firstpage_image] =>[orig_patent_app_number] => 10192890 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/192890
Air-assisted air valve for air atomized spray guns Jul 10, 2002 Issued
Array ( [id] => 1190025 [patent_doc_number] => 06729279 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-05-04 [patent_title] => 'Apparatus for controlling at least one engine valve in a combustion engine' [patent_app_type] => B1 [patent_app_number] => 10/088607 [patent_app_country] => US [patent_app_date] => 2002-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 4328 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 370 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/729/06729279.pdf [firstpage_image] =>[orig_patent_app_number] => 10088607 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/088607
Apparatus for controlling at least one engine valve in a combustion engine Jun 26, 2002 Issued
Array ( [id] => 1051436 [patent_doc_number] => 06857403 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-02-22 [patent_title] => 'Hydraulically controlled actuator for activating a valve' [patent_app_type] => utility [patent_app_number] => 10/416107 [patent_app_country] => US [patent_app_date] => 2002-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4846 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 207 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/857/06857403.pdf [firstpage_image] =>[orig_patent_app_number] => 10416107 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/416107
Hydraulically controlled actuator for activating a valve Jun 24, 2002 Issued
Array ( [id] => 6629154 [patent_doc_number] => 20030005900 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-01-09 [patent_title] => 'Control device for four cycle engine of outboard motor' [patent_app_type] => new [patent_app_number] => 10/179620 [patent_app_country] => US [patent_app_date] => 2002-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 11429 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0005/20030005900.pdf [firstpage_image] =>[orig_patent_app_number] => 10179620 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/179620
Control device for four cycle engine of outboard motor Jun 23, 2002 Issued
Array ( [id] => 6252128 [patent_doc_number] => 20020185091 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-12-12 [patent_title] => 'Engine valve actuator with valve seating control' [patent_app_type] => new [patent_app_number] => 10/176709 [patent_app_country] => US [patent_app_date] => 2002-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 9497 [patent_no_of_claims] => 43 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0185/20020185091.pdf [firstpage_image] =>[orig_patent_app_number] => 10176709 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/176709
Engine valve actuator with valve seating control Jun 23, 2002 Issued
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