Prosecution Insights
Last updated: August 06, 2026

Cantor Colburn LLP - John Crane Inc.

5 pending office actions • 1 client • 5 examiners • 3 art units • 0 of 5 (0%) have an AI response strategy ready

Quality Metrics (n=73473 apps, methodology: how we score firms)

88.1%
Allowance Rate
n=73473
+0.54σ
Allowance Rate (norm)
n=73473
3.2
OAs to Allowance
n=51629
-0.21σ
OAs to Allow (norm)
n=51629
1017 days
Time to Allowance
n=51629
+3.9pp
Interview Lift
n=73473
25.9%
RCE Rate
n=73473
2.1%
Appeal Rate
n=73473

Rejection Performance (% of received rejections ultimately overcome)

75.6%
§101 Overcome
n=3150
81.0%
§102 Overcome
n=23579
81.1%
§103 Overcome
n=36783
82.5%
§112 Overcome
n=23383

Specialization & Scale

H10K, G02F, G06F
Top CPC Subclasses
9%
Top-3 CPC Share
n=73473
68
Practitioners
n=73473
1080.5
Apps / Practitioner
n=73473

Portfolio Summary

5
Total Pending OAs
1
Non-Final OAs
4
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 2 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
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.

2
Hard (40%)
3
Medium (60%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only3 (60%)
Multi-statute (no §101)2 (40%)

Industry Mix

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

1
Life Sciences
20% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
4
Mechanical / Eng
80% 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.

50 h
Manual time on pending OAs
10 h
Time saved (low, 20%)
18 h
Time saved (mid, 35%)
0.4 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
ADJAGBE, MAXIME M 1 84.1% +9.8%
GONZALEZ, MADELINE 1 72.3% +15.9%
WONG, ELTON K 1 77.9% +19.2%
PATEL, VISHAL A 1 59.1% +22.1%
LEE, GILBERT Y 1 78.8% +10.6%

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
19010915 DRIVE RING FOR ROTARY SHAFT EQUIPMENT SEALS ADJAGBE, MAXIME M

Hard Cases (2)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
18523601 SEAL FLUSH COOLER ASSEMBLY FOR ROTARY SHAFT EQUIPMENT SEALS WONG, ELTON K 15d overdue
18012742 MECHANICAL SEAL ASSEMBLY AND METHOD OF ASSEMBLY OF A MECHANICAL SEAL LEE, GILBERT Y

Interview Candidates (4)

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 4 ordered by deadline are shown.

App #TitleExaminerDue in
18523601 SEAL FLUSH COOLER ASSEMBLY FOR ROTARY SHAFT EQUIPMENT SEALS WONG, ELTON K 15d overdue
18523413 MECHANICAL SEAL WITH A SEAL FACE HAVING CHANNELS PATEL, VISHAL A 1d overdue
18415975 FILTER ELEMENT ARRANGEMENT WITHIN A FILTER SYSTEM GONZALEZ, MADELINE
18012742 MECHANICAL SEAL ASSEMBLY AND METHOD OF ASSEMBLY OF A MECHANICAL SEAL LEE, GILBERT Y

Client Portfolio (1 client)

Client (Assignee)Pending OAs
John Crane 5

Top Art Units

Art UnitApps
37452
36752
17731

Pending Office Actions

App #TitleClientExaminerArt UnitStatutesStatusDue inAIFiled
19010915 DRIVE RING FOR ROTARY SHAFT EQUIPMENT SEALS John Crane Inc. ADJAGBE, MAXIME M 3745 §103 Non-Final OA Pending Jan 06, 2025
18415975 FILTER ELEMENT ARRANGEMENT WITHIN A FILTER SYSTEM John Crane UK Limited GONZALEZ, MADELINE 1773 §103 Final Rejection Pending Jan 18, 2024
18523601 SEAL FLUSH COOLER ASSEMBLY FOR ROTARY SHAFT EQUIPMENT SEALS John Crane Inc. WONG, ELTON K 3745 §103§112 Final Rejection 15d overdue Pending Nov 29, 2023
18523413 MECHANICAL SEAL WITH A SEAL FACE HAVING CHANNELS John Crane Inc. PATEL, VISHAL A 3675 §103 Final Rejection 1d overdue Pending Nov 29, 2023
18012742 MECHANICAL SEAL ASSEMBLY AND METHOD OF ASSEMBLY OF A MECHANICAL SEAL John Crane UK Limited LEE, GILBERT Y 3675 §102§103 Final Rejection Pending Jul 11, 2023

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