Prosecution Insights
Last updated: October 25, 2026

Crane Chempharma & Energy Corp.

Technology areas: Semiconductors, Circuits & Optics • Transportation, E-Commerce & Mechanical Systems

2 pending office actions • 2 art units • 2 examiners • 0 of 2 (0%) have an AI response strategy ready • 2 patents granted in the last 365 days

Analysis

Crane Chempharma & Energy Corp. has 2 pending office actions in the Transportation, E-Commerce & Mechanical Systems technology area. These 2 actions are split between 2 distinct art units and are handled by 2 distinct examiners. CHOI, WILLIAM SOON is the busiest examiner, with 1 pending office action.

With 2 pending office actions and 2 distinct examiners, each case is being reviewed independently. The presence of 2 distinct art units for only 2 cases suggests that the company's active filings cover different technical aspects of mechanical systems. This small portfolio requires managing two separate examiner relationships across two different technical groups. Practitioners must prepare separate strategies for each of the 2 pending office actions, as there is no overlap in personnel or technical groups.

The 1 to 1 ratio of examiners to actions means that no single examiner's history will provide a template for the rest of the portfolio. Because the 2 pending office actions are spread across 2 distinct art units, the company faces a fragmented examination process. This requires a prosecution strategy that is both technically broad and individually focused, as the 2 distinct examiners will likely apply different standards of review across the 2 different mechanical disciplines.

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

Portfolio Summary

2
Total Pending OAs
1
Non-Final OAs
1
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 1 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

1
Overdue
0
Due this week
0
Due this month
0
Due in next 60 days
0
Due later

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.

1
Hard (50%)
1
Medium (50%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only1 (50%)
Multi-statute (no §101)1 (50%)

Industry Mix

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

0
Life Sciences
0% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
1
Semiconductors
50% of docket
1
Mechanical / Eng
50% 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.

20 h
Manual time on pending OAs
4 h
Time saved (low, 20%)
7 h
Time saved (mid, 35%)
0.2 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
CHOI, WILLIAM SOON 1 74.4% +11.5%
FADUL, PHILIPMARCUS T 1 81.3% +10.4%

Quick Wins (1)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18296933 CORROSION DETECTION SYSTEM FOR USE WITH A PIPING SYSTEM FADUL, PHILIPMARCUS T 16d overdue

Hard Cases (1)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
19483194 FIELD REPAIRABLE FLANGELESS LINED PIPING CONNECTION CHOI, WILLIAM SOON —

Interview Candidates (2)

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 2 ordered by deadline are shown.

App #TitleExaminerDue in
18296933 CORROSION DETECTION SYSTEM FOR USE WITH A PIPING SYSTEM FADUL, PHILIPMARCUS T 16d overdue
19483194 FIELD REPAIRABLE FLANGELESS LINED PIPING CONNECTION CHOI, WILLIAM SOON —

Top Art Units

Art UnitApps
3679 1
2852 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19483194 FIELD REPAIRABLE FLANGELESS LINED PIPING CONNECTION CHOI, WILLIAM SOON 3679 §102§103§112 Non-Final OA — Pending Nov 10, 2025
18296933 CORROSION DETECTION SYSTEM FOR USE WITH A PIPING SYSTEM FADUL, PHILIPMARCUS T 2852 §103 Final Rejection 16d overdue Pending Apr 06, 2023

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Frequently Asked Questions

How many pending USPTO office actions does Crane Chempharma & Energy Corp. have?

Crane Chempharma & Energy Corp. has 2 pending office actions as of October 2026, spread across 2 art units and 2 examiners.

Which USPTO examiner handles the most Crane Chempharma & Energy Corp. applications?

William Soon Choi has the most, with 1 of Crane Chempharma & Energy Corp.'s pending office actions.

What technology area are Crane Chempharma & Energy Corp.'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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