Search

Hoan H. Tran

Examiner (ID: 7147, Phone: (571)272-2141 , Office: P/2852 )

Most Active Art Unit
2852
Art Unit(s)
2884, 2852
Total Applications
2482
Issued Applications
2414
Pending Applications
55
Abandoned Applications
50

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20309771 [patent_doc_number] => 20250327400 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-23 [patent_title] => SYSTEM AND METHOD FOR MEASURING DOWNHOLE MUD FLOW DENSITY [patent_app_type] => utility [patent_app_number] => 19/258414 [patent_app_country] => US [patent_app_date] => 2025-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3885 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19258414 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/258414
SYSTEM AND METHOD FOR MEASURING DOWNHOLE MUD FLOW DENSITY Jul 1, 2025 Pending
Array ( [id] => 20309757 [patent_doc_number] => 20250327386 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-23 [patent_title] => PLUNGER LIFT LUBRICATOR [patent_app_type] => utility [patent_app_number] => 19/257164 [patent_app_country] => US [patent_app_date] => 2025-07-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 33 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19257164 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/257164
PLUNGER LIFT LUBRICATOR Jun 30, 2025 Pending
Array ( [id] => 20350371 [patent_doc_number] => 20250347223 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => SAMPLING THROUGH PERFORATION GUNS WITH FLUSHING [patent_app_type] => utility [patent_app_number] => 19/202253 [patent_app_country] => US [patent_app_date] => 2025-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9401 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19202253 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/202253
SAMPLING THROUGH PERFORATION GUNS WITH FLUSHING May 7, 2025 Pending
Array ( [id] => 20136668 [patent_doc_number] => 20250243712 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-31 [patent_title] => DOWNHOLE TOOL EMPLOYING A WHIPSTOCK ASSEMBLY, PACKER ASSEMBLY AND DOWNHOLE POWER UNIT [patent_app_type] => utility [patent_app_number] => 19/040059 [patent_app_country] => US [patent_app_date] => 2025-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4261 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -29 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19040059 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/040059
DOWNHOLE TOOL EMPLOYING A WHIPSTOCK ASSEMBLY, PACKER ASSEMBLY AND DOWNHOLE POWER UNIT Jan 28, 2025 Pending
Array ( [id] => 19847397 [patent_doc_number] => 20250092748 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-20 [patent_title] => DEBRIS RESISTANT KEYED RUNNING TOOL AND METHOD [patent_app_type] => utility [patent_app_number] => 18/970405 [patent_app_country] => US [patent_app_date] => 2024-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8916 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18970405 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/970405
DEBRIS RESISTANT KEYED RUNNING TOOL AND METHOD Dec 4, 2024 Pending
Array ( [id] => 20008491 [patent_doc_number] => 20250146713 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-08 [patent_title] => Forming High-Efficiency Geothermal Wellbores [patent_app_type] => utility [patent_app_number] => 18/943448 [patent_app_country] => US [patent_app_date] => 2024-11-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13631 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18943448 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/943448
Forming High-Efficiency Geothermal Wellbores Nov 10, 2024 Pending
Array ( [id] => 20008166 [patent_doc_number] => 20250146388 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-08 [patent_title] => TANDEM SUBS FOR PERFORATING GUN SYSTEMS [patent_app_type] => utility [patent_app_number] => 18/940488 [patent_app_country] => US [patent_app_date] => 2024-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2251 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -40 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18940488 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/940488
TANDEM SUBS FOR PERFORATING GUN SYSTEMS Nov 6, 2024 Pending
Array ( [id] => 19984554 [patent_doc_number] => 20250122776 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-17 [patent_title] => Wireline Derrick, System, and Process [patent_app_type] => utility [patent_app_number] => 18/916003 [patent_app_country] => US [patent_app_date] => 2024-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3299 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18916003 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/916003
Wireline Derrick, System, and Process Oct 14, 2024 Pending
Array ( [id] => 19631821 [patent_doc_number] => 20240410270 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => STEERABILITY OF DOWNHOLE RANGING TOOLS USING ROTARY MAGNETS [patent_app_type] => utility [patent_app_number] => 18/807707 [patent_app_country] => US [patent_app_date] => 2024-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4562 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18807707 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/807707
STEERABILITY OF DOWNHOLE RANGING TOOLS USING ROTARY MAGNETS Aug 15, 2024 Pending
Array ( [id] => 19770698 [patent_doc_number] => 20250052124 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => APPARATUS AND METHOD FOR MOVING TOOLS IN A NONFLOW ENVIRONMENT [patent_app_type] => utility [patent_app_number] => 18/797087 [patent_app_country] => US [patent_app_date] => 2024-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1596 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18797087 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/797087
APPARATUS AND METHOD FOR MOVING TOOLS IN A NONFLOW ENVIRONMENT Aug 6, 2024 Pending
Array ( [id] => 19587077 [patent_doc_number] => 20240384634 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-21 [patent_title] => CENTRIFUGAL PUMP STAGE WITH RADIUSED IMPELLER FLOW PASSAGE EXIT FOR REDUCED EROSION [patent_app_type] => utility [patent_app_number] => 18/748839 [patent_app_country] => US [patent_app_date] => 2024-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9403 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18748839 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/748839
CENTRIFUGAL PUMP STAGE WITH RADIUSED IMPELLER FLOW PASSAGE EXIT FOR REDUCED EROSION Jun 19, 2024 Pending
Array ( [id] => 20187510 [patent_doc_number] => 12398618 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-26 [patent_title] => Passive pressure application and regulation of downhole hydraulic devices [patent_app_type] => utility [patent_app_number] => 18/648333 [patent_app_country] => US [patent_app_date] => 2024-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2591 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 282 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18648333 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/648333
Passive pressure application and regulation of downhole hydraulic devices Apr 25, 2024 Issued
Array ( [id] => 20108805 [patent_doc_number] => 12359514 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-15 [patent_title] => Systems and methods for make-up and break-out of drill pipe [patent_app_type] => utility [patent_app_number] => 18/592353 [patent_app_country] => US [patent_app_date] => 2024-02-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 8 [patent_no_of_words] => 3672 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 235 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18592353 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/592353
Systems and methods for make-up and break-out of drill pipe Feb 28, 2024 Issued
Array ( [id] => 19203437 [patent_doc_number] => 20240175336 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => DOWNHOLE VAPOR-TRANSITION CONTROL VALVE FOR FLUID INJECTION [patent_app_type] => utility [patent_app_number] => 18/434957 [patent_app_country] => US [patent_app_date] => 2024-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14742 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18434957 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/434957
DOWNHOLE VAPOR-TRANSITION CONTROL VALVE FOR FLUID INJECTION Feb 6, 2024 Abandoned
Array ( [id] => 20136711 [patent_doc_number] => 20250243755 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-31 [patent_title] => PINHOLE REPAIR METHOD USING EPOXY AND EXPANDABLE MESH [patent_app_type] => utility [patent_app_number] => 18/425963 [patent_app_country] => US [patent_app_date] => 2024-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18425963 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/425963
PINHOLE REPAIR METHOD USING EPOXY AND EXPANDABLE MESH Jan 28, 2024 Pending
Array ( [id] => 20330213 [patent_doc_number] => 12460481 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Bottom hole apparatus RPM regulator [patent_app_type] => utility [patent_app_number] => 18/424566 [patent_app_country] => US [patent_app_date] => 2024-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18424566 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/424566
Bottom hole apparatus RPM regulator Jan 25, 2024 Issued
Array ( [id] => 19113323 [patent_doc_number] => 20240125073 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => INFLATABLE ACTIVE PACKER [patent_app_type] => utility [patent_app_number] => 18/396630 [patent_app_country] => US [patent_app_date] => 2023-12-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2937 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18396630 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/396630
INFLATABLE ACTIVE PACKER Dec 25, 2023 Pending
Array ( [id] => 19234395 [patent_doc_number] => 20240191588 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-13 [patent_title] => Nested Tubing Hanger [patent_app_type] => utility [patent_app_number] => 18/535870 [patent_app_country] => US [patent_app_date] => 2023-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2425 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18535870 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/535870
Nested tubing hanger Dec 10, 2023 Issued
Array ( [id] => 20041660 [patent_doc_number] => 20250179882 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => CUSTOMIZED CENTRALIZING HOUSING FOR DOWNHOLE TOOL [patent_app_type] => utility [patent_app_number] => 18/527790 [patent_app_country] => US [patent_app_date] => 2023-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18527790 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/527790
Customized centralizing housing for downhole tool Dec 3, 2023 Issued
Array ( [id] => 20041668 [patent_doc_number] => 20250179890 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => Downhole Orienting Helix for Operations Requiring Multiple Orienting Sequences [patent_app_type] => utility [patent_app_number] => 18/524134 [patent_app_country] => US [patent_app_date] => 2023-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4848 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18524134 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/524134
Downhole Orienting Helix for Operations Requiring Multiple Orienting Sequences Nov 29, 2023 Pending
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