Prosecution Insights
Last updated: October 27, 2026

Coinbase Inc.

Technology area: Transportation, E-Commerce & Mechanical Systems

8 pending office actions • 6 art units • 8 examiners • 0 of 8 (0%) have an AI response strategy ready • 29 patents granted in the last 365 days

Analysis

Coinbase Inc. has 9 pending office actions in Transportation, E-Commerce & Mechanical Systems. The portfolio spans 9 examiners and 7 art units, indicating broad examiner distribution with some repeated art-unit placement.

HAMILTON, SARA CHANDLER is the busiest examiner, with 1 pending matter. No examiner has a larger stated concentration, so prosecution management should emphasize matter-level preparation rather than reliance on a dominant examiner relationship.

The seven-art-unit structure may still permit coordination around recurring technical concepts. Counsel should preserve consistent terminology while adapting prior-art and eligibility positions to each examination setting.

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

Portfolio Summary

8
Total Pending OAs
4
Non-Final OAs
3
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 3 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

2
Overdue
0
Due this week
0
Due this month
0
Due in next 60 days
1
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. 3 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (2)Due later (1)

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.

7
Hard (88%)
1
Medium (12%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 only4 (50%)
§101 + other3 (38%)
§103 only1 (12%)

Industry Mix

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

0
Life Sciences
0% of docket
1
Information Tech
12% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
7
Mechanical / Eng
88% of docket
0
Business / Other
0% 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.

80 h
Manual time on pending OAs
16 h
Time saved (low, 20%)
28 h
Time saved (mid, 35%)
0.7 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
HAMILTON, SARA CHANDLER 1 64.0% +52.8%
ROSEN, ELIZABETH H 1 46.0% +49.9%
ANDREI, RADU 1 36.7% +19.5%
LOZA, JANICE JOMARIE 1 11.8% +33.3%
NWUHA, SAMUEL OBINNA NNAJI 1 — —
LIU, I JUNG 1 61.7% +33.2%
IMMANUEL, ILSE I 1 27.7% +27.2%
PHAN, NICHOLAS K 1 52.1% +19.6%

Hard Cases (7)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 7 ordered by deadline are shown.

App #TitleExaminerDue in
18199917 USING BLOCKCHAIN WALLET FOR TWO-FACTOR AUTHENTICATION IMMANUEL, ILSE I 50d overdue
18372052 CRYPTO TOKEN THRESHOLD NOTIFICATIONS LIU, I JUNG 5d overdue
18389760 SINGLE CASH BALANCE ANDREI, RADU 70d
19005830 USER INTERFACES OF A MOBILE APPLICATION FOR A CUSTODIAL TOKEN PLATFORM HAMILTON, SARA CHANDLER —
18803519 EXTERNAL FIAT CASHOUT VIA A SELF-CUSTODY APPLICATION ROSEN, ELIZABETH H —
18521908 ON-CHAIN ATTESTATIONS USING USER DATA LOZA, JANICE JOMARIE —
18122650 WEB3 TRANSFER PROTOCOL PHAN, NICHOLAS K —

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
18199917 USING BLOCKCHAIN WALLET FOR TWO-FACTOR AUTHENTICATION IMMANUEL, ILSE I 50d overdue
18372052 CRYPTO TOKEN THRESHOLD NOTIFICATIONS LIU, I JUNG 5d overdue
18389760 SINGLE CASH BALANCE ANDREI, RADU 70d
19005830 USER INTERFACES OF A MOBILE APPLICATION FOR A CUSTODIAL TOKEN PLATFORM HAMILTON, SARA CHANDLER —
18803519 EXTERNAL FIAT CASHOUT VIA A SELF-CUSTODY APPLICATION ROSEN, ELIZABETH H —
18521908 ON-CHAIN ATTESTATIONS USING USER DATA LOZA, JANICE JOMARIE —
18122650 WEB3 TRANSFER PROTOCOL PHAN, NICHOLAS K —

Top Art Units

Art UnitApps
3695 2
3699 2
3693 1
3697 1
3698 1
2194 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19005830 USER INTERFACES OF A MOBILE APPLICATION FOR A CUSTODIAL TOKEN PLATFORM HAMILTON, SARA CHANDLER 3695 §101 Final Rejection — Pending Dec 30, 2024
18803519 EXTERNAL FIAT CASHOUT VIA A SELF-CUSTODY APPLICATION ROSEN, ELIZABETH H 3693 §101 Non-Final OA — Pending Aug 13, 2024
18389760 SINGLE CASH BALANCE ANDREI, RADU 3697 §101§103§112 Final Rejection 70d Pending Dec 19, 2023
18521908 ON-CHAIN ATTESTATIONS USING USER DATA LOZA, JANICE JOMARIE 3698 §101§103§112 Non-Final OA — Pending Nov 28, 2023
18375338 DYNAMIC CONTENT FOR A TOKEN PLATFORM NWUHA, SAMUEL OBINNA NNAJI 2194 §103 Non-Final OA — Pending Sep 29, 2023
18372052 CRYPTO TOKEN THRESHOLD NOTIFICATIONS LIU, I JUNG 3695 §101 Final Rejection 5d overdue Pending Sep 22, 2023
18199917 USING BLOCKCHAIN WALLET FOR TWO-FACTOR AUTHENTICATION IMMANUEL, ILSE I 3699 §101§103 Non-Final OA 50d overdue Pending May 19, 2023
18122650 WEB3 TRANSFER PROTOCOL PHAN, NICHOLAS K 3699 §101 Non-Final OA — Pending Mar 16, 2023

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Frequently Asked Questions

How many pending USPTO office actions does Coinbase Inc. have?

Coinbase Inc. has 8 pending office actions as of October 2026, spread across 6 art units and 8 examiners.

Which USPTO examiner handles the most Coinbase Inc. applications?

Sara Chandler Hamilton has the most, with 1 of Coinbase Inc.'s pending office actions.

What technology area are Coinbase Inc.'s patent applications in?

Mostly Transportation, E-Commerce & Mechanical Systems (USPTO Tech Center 3600), based on where its pending office actions are examined.

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