Prosecution Insights
Last updated: October 27, 2026

The Regents of the University of Colorado

Technology area: Biotechnology & Pharmaceuticals

73 pending office actions • 57 art units • 69 examiners • 0 of 73 (0%) have an AI response strategy ready • 63 patents granted in the last 365 days

Analysis

The Regents of the University of Colorado has 74 pending office actions in Biotechnology & Pharmaceuticals. The matters span 70 distinct examiners and 56 distinct art units, indicating a highly distributed prosecution portfolio across a wide range of biotechnology examination settings.

PAZ ESTEVEZ, GUILLERMO G is the busiest listed examiner, with 3 pending matters. That assignment provides one coordination point, but the breadth of the docket requires systematic tracking of examiner positions, art-unit practices, claim terminology, and disclosure consistency across the portfolio.

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

Portfolio Summary

73
Total Pending OAs
50
Non-Final OAs
22
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 20 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

11
Overdue
0
Due this week
5
Due this month
2
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. 20 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (11)Due ≤ 30 days (5)Due ≤ 60 days (2)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.

42
Hard (58%)
24
Medium (33%)
7
Easy (10%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other4 (5%)
§103 only20 (27%)
§102 only3 (4%)
§112 only7 (10%)
Double-patenting + other1 (1%)
Multi-statute (no §101)38 (52%)

Industry Mix

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

48
Life Sciences
66% of docket
1
Information Tech
1% of docket
2
Communications
3% of docket
5
Semiconductors
7% of docket
15
Mechanical / Eng
21% of docket
2
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.

730 h
Manual time on pending OAs
146 h
Time saved (low, 20%)
255 h
Time saved (mid, 35%)
6.4 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
PAZ ESTEVEZ, GUILLERMO G 3 20.0% +6.8%
SEAMAN, D MARGARET M 2 76.6% +8.1%
MCCLURE, CHRISTINA D 2 29.9% +33.1%
SHIRSAT, MARCELA 1 73.8% +18.9%
LEE, SARAH YEO 1 100.0% +0.0%
KIM, KIHO 1 85.4% +4.4%
HUANG, DAVID Z 1 80.4% +13.2%
SWIFT, CANDICE LEE 1 56.6% +37.2%
OGUNBIYI, OLUWATOSIN A 1 63.8% +41.2%
BUCK, LINDSEY A 1 49.4% +34.3%

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
19178366 OPTIMIZED VIRTUAL REALITY SYSTEM LEE, SARAH YEO —
18972502 FLOATING PLATFORM SYSTEM FOR MECHANICAL TESTING OF GELS AND TISSUES HUANG, DAVID Z —

Hard Cases (46)

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
18042509 ULTRAVIOLET-ABSORPTIVE NANOPARTICLES AND MICROPARTICLES FOR INTRADERMAL USE JANOSKO, CHASITY PAIGE 271d overdue
18127284 COMPOSITIONS AND METHODS FOR PRODUCING AND USING ILCS TO TREAT HEALTH CONDITIONS HAMA, JOANNE 131d overdue
17317717 VENOUS ACCESS CATHETERS AND METHODS FOR PORTAL VENOUS SYSTEM CATHETERIZATION PAZ ESTEVEZ, GUILLERMO G 128d overdue
17501148 VENOUS ACCESS CATHETERS AND METHODS FOR PORTAL VENOUS SYSTEM CATHETERIZATION PAZ ESTEVEZ, GUILLERMO G 114d overdue
17962656 Toll-Like Receptor 8 (TLR8)-Specific Antagonists and Methods of Making and Uses Thereof SEAMAN, D MARGARET M 60d overdue
18132164 COMPOSITIONS, METHODS AND USES FOR IN VITRO AND IN VIVO GENERATION OF FUNCTIONAL THYMIC TISSUE WILSON, MICHAEL C 45d overdue
17511228 GENERATION OF FUNCTIONAL AND PATIENT-SPECIFIC THYMIC TISSUE FROM INDUCED PLURIPOTENT STEM CELLS SCHULTZ, JAMES 4d overdue
17619579 METHOD OF CONTROLLING AN AMOUNT OF SOLUBLE BASE CONTENT OF MATERIAL COMPRISING LITHIUM CARBONATE AND STRUCTURE, CATHODE, AND BATTERY FORMED USING THE METHOD MCCLURE, CHRISTINA D 1d overdue

Interview Candidates (7)

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 7 ordered by deadline are shown.

App #TitleExaminerDue in
17619579 METHOD OF CONTROLLING AN AMOUNT OF SOLUBLE BASE CONTENT OF MATERIAL COMPRISING LITHIUM CARBONATE AND STRUCTURE, CATHODE, AND BATTERY FORMED USING THE METHOD MCCLURE, CHRISTINA D 1d overdue
18096668 ELECTRON-ENHANCED ATOMIC LAYER DEPOSITION (EE-ALD) METHODS AND DEVICES PREPARED BY SAME MCCLURE, CHRISTINA D 56d
19143905 SURGICAL INSTRUMENT FOR CONDITIONING LARGE DIAMETER BURR HOLES SHIRSAT, MARCELA —
18972502 FLOATING PLATFORM SYSTEM FOR MECHANICAL TESTING OF GELS AND TISSUES HUANG, DAVID Z —
18967837 Proteins for Blocking Neurotransmitter Release SWIFT, CANDICE LEE —
18863566 IMMUNOBIOTICS FOR PREVENTING BACTERIAL PNEUMONIA AND METHODS OF USING THE SAME OGUNBIYI, OLUWATOSIN A —
18863013 THERMOPHOTOVOLTAIC SYSTEM BUCK, LINDSEY A —

Top Art Units

Art UnitApps
3783 4
1631 3
3792 2
1681 2
3791 2
1613 2
1647 2
1646 2
3774 2
1682 2

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19143905 SURGICAL INSTRUMENT FOR CONDITIONING LARGE DIAMETER BURR HOLES SHIRSAT, MARCELA 3775 §102§103 Final Rejection — Pending Jun 27, 2025
19178366 OPTIMIZED VIRTUAL REALITY SYSTEM LEE, SARAH YEO 2616 §103 Non-Final OA — Pending Apr 14, 2025
19057550 Scanner Utilizing Beam Computed Tomography And Antiscatter Grid KIM, KIHO 2884 §102§103 Non-Final OA — Pending Feb 19, 2025
18972502 FLOATING PLATFORM SYSTEM FOR MECHANICAL TESTING OF GELS AND TISSUES HUANG, DAVID Z 2855 §112 Non-Final OA — Pending Dec 06, 2024
18967837 Proteins for Blocking Neurotransmitter Release SWIFT, CANDICE LEE — §103§112Other Non-Final OA — Pending Dec 04, 2024
18864247 ANTIBIOTIC COMPOSITION AND METHODS OF USE THEREOF SEAMAN, D MARGARET M 1629 §103 Non-Final OA — Pending Nov 08, 2024
18863566 IMMUNOBIOTICS FOR PREVENTING BACTERIAL PNEUMONIA AND METHODS OF USING THE SAME OGUNBIYI, OLUWATOSIN A 1645 §102§103§112 Non-Final OA — Pending Nov 06, 2024
18863013 THERMOPHOTOVOLTAIC SYSTEM BUCK, LINDSEY A 1728 §102§103§112 Final Rejection — Pending Nov 05, 2024
18925427 HUMAN OSTEOPONTIN PROTEIN PRODUCTION IN PLANT SYSTEMS SHEN, YANXIN NMN 1663 §103§112 Non-Final OA 9d Pending Oct 24, 2024
18920752 METHODS AND DEVICES FOR A CONFIGURABLE MEDICAL INFORMATION PLATFORM YEN, SYLING 3687 §103 Non-Final OA — Pending Oct 18, 2024
18847671 METHODS AND COMPOSITIONS FOR DISRUPTING TAU AGGREGATES USING POLYSERINE REPEAT SEQUENCES TARGETING EXOGENOUS PROTEINS SAIDHA, TEKCHAND 1652 §102§112 Non-Final OA — Pending Sep 16, 2024
18885581 Inter-Frequency Signal Aiding For Tracking Satellite Navigation Signals GREGORY, BERNARR E 3648 §101§103§112 Non-Final OA — Pending Sep 14, 2024
18817015 VENTRICULAR ASSIST ASSEMBLY, SYSTEM, AND METHOD CIRULNICK, EMILY NICOLE 3792 §102§103§112Other Non-Final OA — Pending Aug 27, 2024
18839131 SMALL MOLECULES TARGETTING EIF3E TO INHIBIT TUMOR GROWTH PROGRESSION, AND METASTASIS AULAKH, CHARANJIT 1621 §102§112 Non-Final OA — Pending Aug 16, 2024
18800335 SYNTHESIS OF BACKBONE MODIFIED MORPHOLINO OLIGONUCLEOTIDES AND CHIMERAS USING PHOSPHORAMIDITE CHEMISTRY RILEY, JEZIA 1681 §102§103§112Other Non-Final OA — Pending Aug 12, 2024
18837842 PLASMON-ENHANCED FLUORESCENCE BIOCHEMICAL SENSORS EOM, ROBERT J 1797 §103 Non-Final OA 20d Pending Aug 12, 2024
18784462 DEVICES FOR IMPLANTATION OF CELLULAR TRANSPLANTS AND METHODS OF USING THE SAME MULLINS, JESSICA LYNN 3792 §102§103§112 Non-Final OA — Pending Jul 25, 2024
18750876 RHEOLOGICALLY MODIFIED LIQUID METAL DEVICES AND RELATED SYSTEMS AND METHODS SMOOT, MORIAH SIMONE MCMIL 3791 §102§103§112 Non-Final OA — Pending Jun 21, 2024
18734972 FIBROUS POLYPEPTIDE-BASED BIOSCAFFOLD DELIVERY OF THERAPEUTICS TO NEURAL CELLS CHI, AMANDA LYNN 1613 §102§103§112 Non-Final OA — Pending Jun 05, 2024
18648678 METHODS AND COMPOSITIONS TO ENHANCE THE ANTI-INFLAMMATORY EFFECTS OF INTERLEUKIN 10 NOBLE, MARCIA STEPHENS 1632 §103§112 Non-Final OA — Pending Apr 29, 2024
18703245 METHOD AND REACTOR SYSTEM FOR SPLITTING WATER AND/OR CARBON DIOXIDE HENDRICKSON, STUART L — §112Other Non-Final OA — Pending Apr 19, 2024
18627155 COMPOSITIONS AND METHODS FOR REDUCING ADVERSE EFFECTS OF STORAGE, TRANSPORT AND ADMINISTRATION OF ANTIGEN-CONTAINING FORMULATIONS ZHANG SPIERING, DONGXIU 1616 §103§112 Non-Final OA — Pending Apr 04, 2024
18627309 CELLULAR TRANSPLANT CARRIER DEVICES AND METHODS OF USING THE SAME GRAY, PHILLIP A 3783 §102§103§112 Non-Final OA — Pending Apr 04, 2024
18697411 DIAGNOSING MULTIPLE SCLEROSIS (MS) COLE, HOUSTON DAVID 1758 §101§102§103§112 Non-Final OA — Pending Mar 29, 2024
18622525 COMPOSITIONS AND METHODS FOR REDUCED TOXICITY IN TRANSPLANTATION USING JANUS KINASE (JAK) INHIBITORS PYLA, EVELYN Y 1633 §102§103§112 Non-Final OA — Pending Mar 29, 2024
18601079 LIGHTWEIGHT CALIBRATION METHOD FOR DIRECTION FINDING QUIGLEY, KYLE ROBERT 2857 §103 Final Rejection — Pending Mar 11, 2024
18686115 IONIC LIQUID-BASED COMPOSITE MEMBRANES USING FUNCTIONAL CROSS-LINKERS EZELUOMBA, MIRIAM NCHEKWUBECHU 1776 §103§112 Non-Final OA — Pending Feb 23, 2024
18585791 Crystalline Sp-Sp2 Hybridized Carbon Allotropes through Dynamic Covalent Synthesis KUMAR, SRILAKSHMI K 1738 §102§112 Non-Final OA — Pending Feb 23, 2024
18685045 CELL-SURFACE ANTIBODY TO A SPECIFIC BIOMARKER OF PANCREATIC BETA-CELLS LOCKARD, JON MCCLELLAND 1647 §112 Non-Final OA — Pending Feb 20, 2024
18293258 Dynamic Assessment Of Airway Deformation AZIMA, SHAGHAYEGH 2671 §103 Non-Final OA 23d Pending Jan 29, 2024
18412205 REVERSE THERMAL GELS AND THEIR USE AS VASCULAR EMBOLIC REPAIR AGENTS PIPIC, ALMA 1617 §103§112 Final Rejection — Pending Jan 12, 2024
18396386 SURFACE BRACHYTHERAPY DEVICE, APPLICATOR, AND METHODS THEREFOR CASLER, BRIAN L 3791 §102§103 Non-Final OA — Pending Dec 26, 2023
18573907 PEROXIDE-ENHANCED GERMICIDAL IRRADIATION FOR THE TREATMENT OF AIRBORNE AND SURFACE-ASSOCIATED CONTAMINANTS CHEN, CHANGRU 1796 §103 Final Rejection 12d Pending Dec 22, 2023
18562035 COMPOSITIONS AND METHODS FOR PRODUCING AND USING CELL-BASED IMMUNOTHERAPIES TO TARGET TUMORS HOLTZMAN, KATHERINE ANN 1646 §102§103§112 Non-Final OA — Pending Nov 17, 2023
18506637 COMPOSITIONS AND METHODS OF USE FOR MUTATED HOTAIR IN THE TREATMENT OF CANCERS KONOPKA, CATHERINE ANNE 1635 §112 Non-Final OA — Pending Nov 10, 2023
18481830 SULCUS IMPLANTS AND METHODS OF USING THE SAME LOPEZ, LESLIE ANN 3774 §102 Final Rejection 83d Pending Oct 05, 2023
18375953 CLUTCH SYSTEM FOR A POWERED PROSTHETIC DEVICE CROWE, RAEGAN NADIA 3774 §102 Non-Final OA — Pending Oct 02, 2023
18285246 CEMENT ADDITIVE FOR RETARDATION OF CEMENT HYDRATION, CEMENT MIXTURES INCLUDING SAME, AND METHODS OF FORMING AND USING SAME CHAU, LISA N 1785 §102§103§112 Non-Final OA — Pending Sep 30, 2023
18279769 METHODS AND DEVICES FOR NUCLEIC ACID DETECTION JONES, CHRISTINE MICHELLE 1682 §103 Final Rejection 13d Pending Sep 01, 2023
18237705 COMPOSITIONS AND METHODS FOR IMPROVED TREATMENT OF PLATINUM-BASED CHEMOTHERAPEUTIC RESISTANT TUMORS LEE, WILLIAM Y 1623 §102§112 Non-Final OA — Pending Aug 24, 2023
18359793 Novel Peptide Carrier Compositions BANERJEE, KOYELI 1658 §103 Non-Final OA — Pending Jul 26, 2023
18359810 Microfluidics Chips Useful in Nanoparticle Preparation and Expandable Pump Network System Useful Therewith GORDON, BRIAN R 1798 §102§103§112 Final Rejection 76d Pending Jul 26, 2023
18271727 METHODS AND COMPOSITIONS FOR MOLECULAR TRACKING IN INDIVIDUAL CELLS IN VIVO YOUNG, BRIAN ELLIS 1682 §102§103§112 Non-Final OA — Pending Jul 11, 2023
18267348 COMPOSITION FOR REVERSIBLE POLYMERIZATION OF THIOESTER AND METHODS THEREOF KAHN, RACHEL 1766 §103§112 Final Rejection — Pending Jun 14, 2023
18318926 HYBRID POLYMER/CRYSTAL PHOTOMECHANICAL MATERIALS ANGEBRANNDT, MARTIN J 1737 §103§112 Non-Final OA 56d Pending May 17, 2023
18298967 PULSED ELECTRODEPOSITION FOR REVERSIBLE METAL ELECTRODEPOSITION TO CONTROL METAL FILM MORPHOLOGY AND OPTICAL PROPERTIES DOWNES, NATHANAEL JASON 1794 §103§112 Non-Final OA — Pending Apr 11, 2023
18132164 COMPOSITIONS, METHODS AND USES FOR IN VITRO AND IN VIVO GENERATION OF FUNCTIONAL THYMIC TISSUE WILSON, MICHAEL C 1638 §102§112Other Final Rejection 45d overdue Pending Apr 07, 2023
18127284 COMPOSITIONS AND METHODS FOR PRODUCING AND USING ILCS TO TREAT HEALTH CONDITIONS HAMA, JOANNE 1647 §101§103§112 Non-Final OA 131d overdue Pending Mar 28, 2023
18175225 METHOD OF TREATMENT OF PATIENTS HAVING REDUCED SENSITIVITY TO A BCL-2 INHIBITOR KAUFMAN, CLAIRE M 1674 §102§103§112Other Non-Final OA — Pending Feb 27, 2023
18042509 ULTRAVIOLET-ABSORPTIVE NANOPARTICLES AND MICROPARTICLES FOR INTRADERMAL USE JANOSKO, CHASITY PAIGE 1613 §103§112 Final Rejection 271d overdue Pending Feb 22, 2023

View all 73 →

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Frequently Asked Questions

How many pending USPTO office actions does The Regents of the University of Colorado have?

The Regents of the University of Colorado has 73 pending office actions as of October 2026, spread across 57 art units and 69 examiners.

Which USPTO examiner handles the most The Regents of the University of Colorado applications?

Guillermo G Paz Estevez has the most, with 3 of The Regents of the University of Colorado's pending office actions.

What technology area are The Regents of the University of Colorado's patent applications in?

Mostly Biotechnology & Pharmaceuticals (USPTO Tech Center 1600), based on where its pending office actions are examined.

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