Search

David L. Andrews

Examiner (ID: 672, Phone: (571)272-6558 , Office: P/3672 )

Most Active Art Unit
3672
Art Unit(s)
3672
Total Applications
1177
Issued Applications
805
Pending Applications
87
Abandoned Applications
303

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 8402542 [patent_doc_number] => 20120234600 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-09-20 [patent_title] => 'Downhole Rebound Hardness Measurement While Drilling or Wireline Logging' [patent_app_type] => utility [patent_app_number] => 13/050660 [patent_app_country] => US [patent_app_date] => 2011-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4172 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13050660 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/050660
Downhole rebound hardness measurement while drilling or wireline logging Mar 16, 2011 Issued
Array ( [id] => 9815858 [patent_doc_number] => 08925631 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-01-06 [patent_title] => 'Large bore completions systems and method' [patent_app_type] => utility [patent_app_number] => 13/038921 [patent_app_country] => US [patent_app_date] => 2011-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 18 [patent_no_of_words] => 5984 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13038921 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/038921
Large bore completions systems and method Mar 1, 2011 Issued
Array ( [id] => 6082408 [patent_doc_number] => 20110214919 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-09-08 [patent_title] => 'Dual top drive systems and methods' [patent_app_type] => utility [patent_app_number] => 12/932501 [patent_app_country] => US [patent_app_date] => 2011-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 6211 [patent_no_of_claims] => 21 [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/A1/0214/20110214919.pdf [firstpage_image] =>[orig_patent_app_number] => 12932501 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/932501
Dual top drive systems and methods Feb 24, 2011 Abandoned
Array ( [id] => 6041770 [patent_doc_number] => 20110203847 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-08-25 [patent_title] => 'Downhole Hydraulic Jetting Assembly, and Method for Stimulating a Production Wellbore' [patent_app_type] => utility [patent_app_number] => 13/033587 [patent_app_country] => US [patent_app_date] => 2011-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 18789 [patent_no_of_claims] => 44 [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/A1/0203/20110203847.pdf [firstpage_image] =>[orig_patent_app_number] => 13033587 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/033587
Downhole hydraulic jetting assembly, and method for stimulating a production wellbore Feb 22, 2011 Issued
Array ( [id] => 6136067 [patent_doc_number] => 20110127030 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-06-02 [patent_title] => 'LOCKABLE ANCHOR FOR INSERTABLE PROGRESSING CAVITY PUMP' [patent_app_type] => utility [patent_app_number] => 13/023714 [patent_app_country] => US [patent_app_date] => 2011-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 10780 [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/A1/0127/20110127030.pdf [firstpage_image] =>[orig_patent_app_number] => 13023714 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/023714
Lockable anchor for insertable progressing cavity pump Feb 8, 2011 Issued
Array ( [id] => 6176100 [patent_doc_number] => 20110120777 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-05-26 [patent_title] => 'EXPANDABLE DOWNHOLE TOOL' [patent_app_type] => utility [patent_app_number] => 13/015964 [patent_app_country] => US [patent_app_date] => 2011-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 5185 [patent_no_of_claims] => 17 [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/A1/0120/20110120777.pdf [firstpage_image] =>[orig_patent_app_number] => 13015964 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/015964
Expandable downhole tool Jan 27, 2011 Issued
Array ( [id] => 7727373 [patent_doc_number] => 20120012394 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-01-19 [patent_title] => 'Air Percussion Drilling In Horizontal Wells' [patent_app_type] => utility [patent_app_number] => 13/006867 [patent_app_country] => US [patent_app_date] => 2011-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 5540 [patent_no_of_claims] => 15 [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/A1/0012/20120012394.pdf [firstpage_image] =>[orig_patent_app_number] => 13006867 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/006867
Air Percussion Drilling In Horizontal Wells Jan 13, 2011 Abandoned
Array ( [id] => 8656497 [patent_doc_number] => 20130037326 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-02-14 [patent_title] => 'DEVICE FOR UNCOUPLING A DRILL STRING, DRILLING SYSTEM COMPRISING SUCH A UNCOUPLING DEVICE, AND USE OF SUCH A SYSTEM' [patent_app_type] => utility [patent_app_number] => 13/574067 [patent_app_country] => US [patent_app_date] => 2011-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 7070 [patent_no_of_claims] => 23 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13574067 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/574067
Device for uncoupling a drill string, drilling system comprising such a uncoupling device, and use of such a system Jan 13, 2011 Issued
Array ( [id] => 6054378 [patent_doc_number] => 20110110738 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-05-12 [patent_title] => 'Method And Device For The Production Of Bores' [patent_app_type] => utility [patent_app_number] => 12/987634 [patent_app_country] => US [patent_app_date] => 2011-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3258 [patent_no_of_claims] => 15 [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/A1/0110/20110110738.pdf [firstpage_image] =>[orig_patent_app_number] => 12987634 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/987634
Method and device for the production of bores Jan 9, 2011 Issued
Array ( [id] => 5978670 [patent_doc_number] => 20110094743 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-04-28 [patent_title] => 'System and Method for Dynamically Adjusting the Center of Gravity of a Perforating Apparatus' [patent_app_type] => utility [patent_app_number] => 12/985853 [patent_app_country] => US [patent_app_date] => 2011-01-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7079 [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/A1/0094/20110094743.pdf [firstpage_image] =>[orig_patent_app_number] => 12985853 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/985853
System and method for dynamically adjusting the center of gravity of a perforating apparatus Jan 5, 2011 Issued
Array ( [id] => 9573288 [patent_doc_number] => 08763696 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-07-01 [patent_title] => 'Formation testing' [patent_app_type] => utility [patent_app_number] => 12/983956 [patent_app_country] => US [patent_app_date] => 2011-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 11048 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12983956 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/983956
Formation testing Jan 3, 2011 Issued
Array ( [id] => 11185213 [patent_doc_number] => 09416607 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-08-16 [patent_title] => 'Downhole guiding tool' [patent_app_type] => utility [patent_app_number] => 13/519405 [patent_app_country] => US [patent_app_date] => 2010-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 14 [patent_no_of_words] => 5898 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13519405 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/519405
Downhole guiding tool Dec 28, 2010 Issued
Array ( [id] => 6035128 [patent_doc_number] => 20110088914 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-04-21 [patent_title] => 'Method of Activating a Downhole Tool Assembly' [patent_app_type] => utility [patent_app_number] => 12/978747 [patent_app_country] => US [patent_app_date] => 2010-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 1934 [patent_no_of_claims] => 7 [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/A1/0088/20110088914.pdf [firstpage_image] =>[orig_patent_app_number] => 12978747 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/978747
Method of activating a downhole tool assembly Dec 26, 2010 Issued
Array ( [id] => 11415577 [patent_doc_number] => 09562394 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-02-07 [patent_title] => 'Timed impact drill bit steering' [patent_app_type] => utility [patent_app_number] => 12/967691 [patent_app_country] => US [patent_app_date] => 2010-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 3401 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12967691 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/967691
Timed impact drill bit steering Dec 13, 2010 Issued
Array ( [id] => 6168141 [patent_doc_number] => 20110174547 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-07-21 [patent_title] => 'BEARING ASSEMBLIES, AND BEARING APPARATUSES AND MOTOR ASSEMBLIES USING SAME' [patent_app_type] => utility [patent_app_number] => 12/964208 [patent_app_country] => US [patent_app_date] => 2010-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 7653 [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/A1/0174/20110174547.pdf [firstpage_image] =>[orig_patent_app_number] => 12964208 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/964208
Bearing assemblies, and bearing apparatuses and motor assemblies using same Dec 8, 2010 Issued
Array ( [id] => 8224100 [patent_doc_number] => 20120138308 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-06-07 [patent_title] => 'Apparatus and Methods for Enhanced Well Control in Slim Completions' [patent_app_type] => utility [patent_app_number] => 12/962387 [patent_app_country] => US [patent_app_date] => 2010-12-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 6401 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 11 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12962387 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/962387
Apparatus and methods for enhanced well control in slim completions Dec 6, 2010 Issued
Array ( [id] => 6151660 [patent_doc_number] => 20110155466 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-06-30 [patent_title] => 'VARIED RPM DRILL BIT STEERING' [patent_app_type] => utility [patent_app_number] => 12/960087 [patent_app_country] => US [patent_app_date] => 2010-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5023 [patent_no_of_claims] => 30 [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/A1/0155/20110155466.pdf [firstpage_image] =>[orig_patent_app_number] => 12960087 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/960087
VARIED RPM DRILL BIT STEERING Dec 2, 2010 Abandoned
Array ( [id] => 6136078 [patent_doc_number] => 20110127038 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-06-02 [patent_title] => 'METHOD OF HYDRAULICALLY FRACTURING A FORMATION' [patent_app_type] => utility [patent_app_number] => 12/958187 [patent_app_country] => US [patent_app_date] => 2010-12-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4675 [patent_no_of_claims] => 27 [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/A1/0127/20110127038.pdf [firstpage_image] =>[orig_patent_app_number] => 12958187 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/958187
Method of hydraulically fracturing a formation Nov 30, 2010 Issued
Array ( [id] => 8216259 [patent_doc_number] => 20120132428 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-05-31 [patent_title] => 'BI-STABLE VALVE' [patent_app_type] => utility [patent_app_number] => 12/955507 [patent_app_country] => US [patent_app_date] => 2010-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3816 [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] =>[firstpage_image] =>[orig_patent_app_number] => 12955507 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/955507
Bi-stable valve Nov 28, 2010 Issued
Array ( [id] => 9573284 [patent_doc_number] => 08763692 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-07-01 [patent_title] => 'Parallel fed well antenna array for increased heavy oil recovery' [patent_app_type] => utility [patent_app_number] => 12/950287 [patent_app_country] => US [patent_app_date] => 2010-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 8363 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12950287 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/950287
Parallel fed well antenna array for increased heavy oil recovery Nov 18, 2010 Issued
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