Prosecution Insights
Last updated: October 14, 2026

LG Chem Ltd.

Technology area: Chemistry & Materials

297 pending office actions • 78 art units • 202 examiners • 0 of 297 (0%) have an AI response strategy ready • 406 patents granted in the last 365 days

Analysis

LG Chem Ltd. maintains 280 pending office actions in the Chemistry & Materials technology area. These actions are handled by 200 distinct examiners across 63 distinct art units. LISTVOYB, GREGORY is the busiest examiner, currently managing 5 busiest examiner pending actions. The 63 distinct art units indicate a broad reach across various chemical disciplines.

With 200 distinct examiners for the 280 pending office actions, many examiners are reviewing only an individual case, though some overlap exists. This distribution suggests that the company must manage a wide variety of examiner interactions across the 63 distinct art units. The 5 busiest examiner pending actions assigned to LISTVOYB, GREGORY represent a portion of the 280 pending office actions. Practitioners should coordinate across the 200 distinct examiners to ensure consistent prosecution outcomes.

The 63 distinct art units suggest that the portfolio touches on many specialized groups within the USPTO. Managing 280 pending office actions across these units requires an understanding of the specific technical standards applied by each group. Because the 200 distinct examiners are spread across 63 distinct art units, there is significant variety in the technical scrutiny applied to the applications. This structure requires a strategy that accounts for both individual examiner preferences and art unit trends.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Portfolio Summary

297
Total Pending OAs
207
Non-Final OAs
89
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 71 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

34
Overdue
1
Due this week
25
Due this month
9
Due in next 60 days
2
Due later

Deadline Fire Line

Every pending office action with a known statutory deadline, placed on a days-until-due axis. Dots left of Today are overdue; the further right, the more runway. Cases that share a deadline window stack vertically. 71 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (34)Due ≤ 7 days (1)Due ≤ 30 days (25)Due ≤ 60 days (9)Due later (2)

Case Difficulty Mix

Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.

100
Hard (34%)
173
Medium (58%)
23
Easy (8%)
1
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other8 (3%)
§103 only137 (46%)
§102 only9 (3%)
§112 only17 (6%)
Double-patenting only6 (2%)
Double-patenting + other27 (9%)
Multi-statute (no §101)92 (31%)
No statute on record1 (0%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

270
Life Sciences
91% of docket
1
Information Tech
0% of docket
0
Communications
0% of docket
11
Semiconductors
4% of docket
5
Mechanical / Eng
2% of docket
10
Business / Other
3% of docket

Time-on-OA Estimate

Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.

2,970 h
Manual time on pending OAs
594 h
Time saved (low, 20%)
1,040 h
Time saved (mid, 35%)
26.0 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
GARRETT, DAWN L 7 72.7% +10.2%
YANG, JAY LEE 6 73.8% +2.2%
NERANGIS, VICKEY M 5 56.6% +28.8%
NELSON, MICHAEL B 5 21.4% +37.2%
WATSON, BRAELYN 5 45.5% +35.9%
BOHATY, ANDREW K 5 65.7% +23.1%
DEGUIRE, SEAN M 5 60.8% +28.3%
REDDY, KARUNA P 4 42.6% +10.4%
VISCONTI, GERALDINA 4 86.5% +1.6%
RIETH, STEPHEN EDWARD 4 45.8% +32.9%

Quick Wins (2)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
18835673 NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME VISCONTI, GERALDINA —
18567343 COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME VISCONTI, GERALDINA —

Hard Cases (104)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18005274 Positive Electrode Active Material Precursor and Method of Preparing the Same WANG, PIN JAN 77d overdue
18276352 Curable Composition LEONARD, MICHAEL L 44d overdue
18271764 Preparation Method of Super Absorbent Polymer LALISSE, REMY FREDERIC 32d overdue
18025954 Positive Electrode Active Material, Method of Preparing the Same, and Positive Electrode Material, Positive Electrode, and Lithium Secondary Battery Which Include the Same JACOBSON, SARAH JORDAN 30d overdue
18272509 Preparation Method of Super Absorbent Polymer PROCTOR, CACHET I 29d overdue
18283261 Device and Method for Predicting Low Voltage Failure of Secondary Battery, and Battery Control System Comprising Same Device SULTANA, DILARA 28d overdue
17415464 Acrylic Emulsion Pressure-Sensitive Adhesive Composition WALSHON, SCOTT R 23d overdue
17780613 Magnetic Body, Curable Composition Comprising the Same and Manufacturing Method of the Magnetic Body SMITH, CATHERINE P 16d overdue

Interview Candidates (40)

Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18273398 Resin and Method for Manufacturing Same NERANGIS, VICKEY M 26d overdue
17610394 ORGANIC LIGHT-EMITTING DEVICE GARRETT, DAWN L 19d overdue
17612388 Olefin-Based Polymer REDDY, KARUNA P 4d overdue
18278105 Rubber Composition Containing Bio-Elastomer and Method for Preparing the Same NELSON, MICHAEL B 2d overdue
18039676 BLOCK COPOLYMER AND METHOD FOR PREPARATION THEREOF` NERANGIS, VICKEY M 9d
17776816 ORGANIC LIGHT-EMITTING DEVICE DEGUIRE, SEAN M 22d
17611452 ORGANIC LIGHT EMITTING DEVICE GARRETT, DAWN L 30d
18032141 MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, RECYCLED PLASTIC, AND MOLDED PRODUCT USING THE SAME RIETH, STEPHEN EDWARD 39d

Top Art Units

Art UnitApps
1786 35
1764 18
1765 16
1766 14
1759 13
1763 13
1761 8
1762 7
1751 7
1692 7

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19141899 LIGHT CONTROL FILM CARTER, WILLIAM JOSEPH 2875 §102 Non-Final OA — Pending Jun 20, 2025
19111021 CARBON NANOTUBE DISPERSION AND METHOD FOR PREPARING THE SAME NGUYEN, TRI V 1764 §103Other Non-Final OA — Pending Mar 12, 2025
19111208 MICROORGANISM SIMULTANEOUSLY PRODUCING 1,3-PROPANEDIOL AND 3-HYDROXYPROPIONIC ACID, AND USE THEREOF GANGLE, BRIAN J 1645 §102§112 Non-Final OA — Pending Mar 12, 2025
18293899 METHOD FOR MANUFACTURING TRANSPARENT SHEET, AND TRANSPARENT SHEET SENGUPTA, SONYA MAZUMDAR 1745 §103 Final Rejection — Pending Feb 27, 2025
18996000 POLY(LACTIC ACID-b-3-HYDROXYPROPIONIC ACID) BLOCK COPOLYMER COMPOSITION AND FILM COMPRISING THEREOF ZHANG, MICHAEL N 1781 §101§103Other Non-Final OA — Pending Jan 17, 2025
18877578 Method of Evaluating Quality of Positive Electrode Active Material, Positive Electrode Active Material and Method of Preparing Positive Electrode AHMED, JAMIL 2877 §103 Final Rejection — Pending Dec 20, 2024
18872521 Optical Device GREEN, TRACIE Y 2871 §103 Non-Final OA — Pending Dec 06, 2024
18968679 Super Absorbent Polymer REDDY, KARUNA P 1764 §103 Final Rejection — Pending Dec 04, 2024
18948641 SYSTEMS AND PROCESSES FOR CATALYTIC CONVERSION OF C1-C5 ALCOHOLS TO C2-C5 OLEFIN MIXTURES FADHEL, ALI Z 1772 §103§112 Non-Final OA — Pending Nov 15, 2024
18936366 Positive Electrode Active Material Precursor for Secondary Battery, Preparation Method Thereof and Method of Preparing Positive Electrode Active Material DIGGS, TANISHA 1761 §103 Final Rejection — Pending Nov 04, 2024
18926626 Aerogel Composite FORREST, MICHAEL 1738 Other Non-Final OA — Pending Oct 25, 2024
18905928 CONDUCTIVE RESIN COMPOSITION, METHOD OF PREPARING THE SAME, AND MOLDED ARTICLE INCLUDING THE SAME YOUNG, WILLIAM D 1761 §102§103§112 Non-Final OA 33d Pending Oct 03, 2024
18853461 Method for Recovering Conjugated Diene-Based Monomer GOLOBOY, JAMES C 1771 §103§112 Non-Final OA — Pending Oct 02, 2024
18852132 Liquid Crystal Cell and Optical Device CHUNG, DAVID Y 2871 §103 Final Rejection 67d overdue Pending Sep 27, 2024
18849729 INJECTABLE PREPARATION COMPRISING ISOXAZOLINE DERIVATIVE, AND PREPARATION METHOD THEREFOR FETTEROLF, BRANDON J — §103Other Non-Final OA — Pending Sep 23, 2024
18849029 Method for Manufacturing Electrode Integrated Separator for Lithium Secondary Battery SCHATZ, CHRISTOPHER T 1746 §103§112 Non-Final OA — Pending Sep 20, 2024
18848321 Spiral Baffle System GIORDANO, MICHAEL JAMES 3762 §102§103§112 Non-Final OA — Pending Sep 18, 2024
18844846 COMPOUND WALSHON, SCOTT R 1759 §102§112 Non-Final OA — Pending Sep 06, 2024
18838045 Secondary Battery Binder Composition and Secondary Battery Electrode Mixture Comprising Same DIGNAN, MICHAEL L — §103§112 Non-Final OA — Pending Aug 13, 2024
18835673 NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME VISCONTI, GERALDINA 1737 §112 Non-Final OA — Pending Aug 02, 2024
18833055 Separator for Electrochemical Device and Electrochemical Device Including the Same CHANDLER, KAITY V 1725 §103 Non-Final OA — Pending Jul 25, 2024
18569149 NOVEL PYRIDINE DERIVATIVE COMPOUND AS RON INHIBITOR ONDACHI, PAULINE WANJIKU MUCH 1627 §101§112DP Non-Final OA — Pending Jul 24, 2024
18832464 INJECTABLE FORMULATION CONTAINING ISOXAZOLINE DERIVATIVE BAZARGANI, ARYA AHMADI — §103§112 Non-Final OA — Pending Jul 23, 2024
18728250 Ligand Compound, Organochromium Compound and Catalyst Composition Comprising the Same GOLOBOY, JAMES C 1771 §103 Final Rejection — Pending Jul 11, 2024
18727872 Antibacterial Resin and Molded Body Comprising Same BECKHARDT, LYNDSEY MARIE 1613 §103DP Final Rejection — Pending Jul 10, 2024
18727429 Molded Body SWANSON, ANDREW L 1745 §103§112 Final Rejection 3d overdue Pending Jul 09, 2024
18726283 Reforming Process for Carbon Dioxide HERNANDEZ, RITCHIE EVAN — §102§103 Non-Final OA — Pending Jul 02, 2024
18724402 Thermal Stability Determining Apparatus and Method MENSING, RODGER STEWART 2857 §101§103 Non-Final OA — Pending Jun 26, 2024
18718123 Positive Electrode Active Material and Positive Electrode Including the Same TRINH, THANH TRUC 1726 §102§112 Non-Final OA — Pending Jun 10, 2024
18712506 Polycarbonate Resin and Method for Producing Same DU, SURBHI M 1765 §103DP Non-Final OA — Pending May 22, 2024
18711264 Method for Preparing Positive Electrode Active Material LIANG, JACKIE 1726 §102§103 Non-Final OA — Pending May 17, 2024
18710498 HOLOGRAPHIC RECORDING MEDIUM, COMPOSITION FOR FORMING PHOTOPOLYMER LAYER AND OPTICAL ELEMENT BOOHER, ADAM W 2872 §103 Final Rejection — Pending May 15, 2024
18709981 METHOD FOR PREPARATION OF HIGH PURITY (METH)ACRYLIC ACID BRADY, KRISTEN WEEKS — §103§112Other Non-Final OA — Pending May 14, 2024
18709295 Ink Composition, Organic Light-Emitting Device Using Same, and Manufacturing Method therefor VALENCIA, ALEJANDRO 2853 §103 Final Rejection 8d overdue Pending May 10, 2024
18708401 Porous Polymer Particle, and Columns for Protein Purification Using the Same MCCLAIN, STARFARI TESHAWN 1736 §103 Non-Final OA — Pending May 08, 2024
18708329 METHOD FOR PREPARATION OF HIGH PURITY (METH)ACRYLIC ACID BAKSHI, PANCHAM 1623 §103 Non-Final OA — Pending May 08, 2024
18704028 POLYLACTIDE RESIN COMPOSITION, AND METHOD FOR PREPARING THE SAME LEONARD, MICHAEL L 1763 §103Other Non-Final OA — Pending Apr 23, 2024
18703095 Polycarbonate Resin and Method for Preparing Same SERGENT, RABON A 1765 §102§112Other Non-Final OA — Pending Apr 19, 2024
18700153 METHOD FOR TREATING WASTEWATER OF NEOPENTYL GLYCOL CARR, DEBORAH D 1691 §103Other Non-Final OA — Pending Apr 10, 2024
18700000 Biodegradable Composition and Biodegradable Film NERANGIS, VICKEY M 1763 §102§103 Non-Final OA — Pending Apr 10, 2024
18699478 METHOD FOR PREPARING NEOPENTYL GLYCOL CARR, DEBORAH D 1691 DP Non-Final OA — Pending Apr 08, 2024
18699407 Super Absorbent Polymer Composition and Preparation Method Thereof MCCAIG, BRIAN A 1772 §103 Non-Final OA — Pending Apr 08, 2024
18699021 MANUFACTURING METHOD OF BUTADIENE NGUYEN, TAM M 1771 §103 Final Rejection 22d Pending Apr 05, 2024
18698047 Back Plate Film NELSON, MICHAEL B 1787 §103 Non-Final OA — Pending Apr 03, 2024
18695449 METHOD OF DRYING WET POWDER USING FLUIDIZED BED DRYER WAN, DEMING 3762 §103 Non-Final OA — Pending Mar 26, 2024
18695112 Positive Electrode Active Material and Method for Producing the Same LYNCH, VICTORIA HOM 1724 §103DP Non-Final OA — Pending Mar 25, 2024
18693941 POLYETHYLENE AND VULCANIZABLE CHLORINATED POLYETHYLENE COMPOSITIONS USING THE SAME HUHN, RICHARD A 1764 §112 Non-Final OA — Pending Mar 20, 2024
18693016 Preparation Method of Super Absorbent Polymer HUHN, RICHARD A 1764 §102§103 Non-Final OA — Pending Mar 18, 2024
18691418 POLYCARBONATE RESIN COMPOSITION, METHOD OF PREPARING THE SAME, AND MOLDED ARTICLE INCLUDING THE SAME SASTRI, SATYA B 1762 §103DP Non-Final OA — Pending Mar 12, 2024
18690707 POLYESTER POLYMER, AND METHOD FOR PREPARING THE SAME, CATALYST SYSTEM SANDERSON, LEE E 3991 §103§112 Non-Final OA — Pending Mar 08, 2024

View all 297 →

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Frequently Asked Questions

How many pending USPTO office actions does LG Chem Ltd. have?

LG Chem Ltd. has 297 pending office actions as of October 2026, spread across 78 art units and 202 examiners.

Which USPTO examiner handles the most LG Chem Ltd. applications?

Dawn L Garrett has the most, with 7 of LG Chem Ltd.'s pending office actions.

What technology area are LG Chem Ltd.'s patent applications in?

Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.

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