Prosecution Insights
Last updated: October 04, 2026

Butler Snow LLP

Technology areas: Chemistry & Materials • Medical Devices & Mechanical Engineering

8 pending office actions • 6 clients • 8 examiners • 6 art units • 0 of 8 (0%) have an AI response strategy ready

Analysis

BUTLER SNOW LLP has handled 550 career applications in the Medical Devices & Mechanical Engineering technology area. The firm maintains a resolved allowance rate of 81.75 percent. This statistic indicates a solid track record of securing patent grants for their clients.

The firm currently has 8 pending office actions. Their average of 3.66 office actions per allowance suggests a more involved prosecution process. This figure indicates that applications may require multiple rounds of negotiation with patent examiners to reach a final allowance.

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

Quality Metrics (n=550 apps, methodology: how we score firms)

81.8%
Allowance Rate
n=550
+0.53σ
Allowance Rate (norm)
n=550
3.7
OAs to Allowance
n=309
+0.03σ
OAs to Allow (norm)
n=309
1133 days
Time to Allowance
n=309
+11.6pp
Interview Lift
n=550
32.5%
RCE Rate
n=550
0.4%
Appeal Rate
n=550

Rejection Performance (% of received rejections ultimately overcome)

70.4%
§101 Overcome
n=44
82.3%
§102 Overcome
n=130
73.9%
§103 Overcome
n=199
80.0%
§112 Overcome
n=150

Specialization & Scale

G01N, A61K, C12Q
Top CPC Subclasses
12%
Top-3 CPC Share
n=550
2
Practitioners
n=550
275.0
Apps / Practitioner
n=550

Portfolio Summary

8
Total Pending OAs
4
Non-Final OAs
4
Final Rejections
0
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.

3
Overdue
0
Due this week
0
Due this month
0
Due in next 60 days
0
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 (3)

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.

4
Hard (50%)
4
Medium (50%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other2 (25%)
§103 only1 (12%)
§102 only2 (25%)
Double-patenting + other1 (12%)
Multi-statute (no §101)2 (25%)

Industry Mix

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

2
Life Sciences
25% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
5
Mechanical / Eng
62% of docket
1
Business / Other
12% 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
ZAMAN, SADARUZ 1 45.6% +33.7%
SHERR, MARIA CRISTI OWEN 1 26.3% +14.2%
XU, JUSTIN 1 60.2% +36.7%
PRIEST, AARON A 1 61.3% +25.7%
LIM, SENG HENG 1 65.8% +29.5%
MCCLAIN, STARFARI TESHAWN 1 90.6% -12.6%
BLEDSOE, JOSHUA CALEB 1 44.4% +52.7%
CROSBY JR, RICHARD D 1 69.0% +15.0%

Hard Cases (4)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 4 ordered by deadline are shown.

App #TitleExaminerDue in
18947992 SMART PROXY SYSTEMS AND METHODS FOR TOKENIZATION AND POINT-TO-POINT ENCRYPTION SERVICES SHERR, MARIA CRISTI OWEN 147d overdue
17697855 Modular Electric Hair-Cutting Devices and Methods CROSBY JR, RICHARD D 113d overdue
18736143 SYSTEMS AND METHODS FOR PREDICTING DISEASES XU, JUSTIN —
18112446 FUNCTIONAL CARBON MATERIALS AND METHODS OF MAKING THE SAME MCCLAIN, STARFARI TESHAWN —

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
18947992 SMART PROXY SYSTEMS AND METHODS FOR TOKENIZATION AND POINT-TO-POINT ENCRYPTION SERVICES SHERR, MARIA CRISTI OWEN 147d overdue
17697855 Modular Electric Hair-Cutting Devices and Methods CROSBY JR, RICHARD D 113d overdue
17848342 FUNCTIONAL CARBON MATERIALS AND METHODS OF MAKING THE SAME BLEDSOE, JOSHUA CALEB 77d overdue
18984290 BALL FEEDING SYSTEMS AND METHODS ZAMAN, SADARUZ —
18736143 SYSTEMS AND METHODS FOR PREDICTING DISEASES XU, JUSTIN —
18583640 AMPLICON RESCUE MULTIPLEX POLYMERASE CHAIN REACTION FOR AMPLIFICATION OF MULTIPLE TARGETS PRIEST, AARON A —
18411574 PLAYER MONITORING SYSTEMS AND METHODS FOR EFFICIENTLY PROCESSING SENSOR DATA LIM, SENG HENG —

Client Portfolio (6 clients)

Top Art Units

Art UnitApps
37152
36971
37911
17361
17621
37241

Pending Office Actions

App #TitleClientExaminerArt UnitStatutesStatusDue inAIFiled
18984290 BALL FEEDING SYSTEMS AND METHODS Pillar Vision, Inc. ZAMAN, SADARUZ 3715 §102 Non-Final OA — Pending Dec 17, 2024
18947992 SMART PROXY SYSTEMS AND METHODS FOR TOKENIZATION AND POINT-TO-POINT ENCRYPTION SERVICES Bluefin Payment Systems, LLC SHERR, MARIA CRISTI OWEN 3697 §101§103 Final Rejection 147d overdue Pending Nov 14, 2024
18736143 SYSTEMS AND METHODS FOR PREDICTING DISEASES Volatile Analysis Corporation XU, JUSTIN 3791 §101§103§112 Final Rejection — Pending Jun 06, 2024
18583640 AMPLICON RESCUE MULTIPLEX POLYMERASE CHAIN REACTION FOR AMPLIFICATION OF MULTIPLE TARGETS Irepertoire, Inc. PRIEST, AARON A §103DP Final Rejection — Pending Feb 21, 2024
18411574 PLAYER MONITORING SYSTEMS AND METHODS FOR EFFICIENTLY PROCESSING SENSOR DATA Pillar Vision, Inc. LIM, SENG HENG 3715 §102 Final Rejection — Pending Jan 12, 2024
18112446 FUNCTIONAL CARBON MATERIALS AND METHODS OF MAKING THE SAME The University of Southern California MCCLAIN, STARFARI TESHAWN 1736 §102§103 Non-Final OA — Pending Feb 21, 2023
17848342 FUNCTIONAL CARBON MATERIALS AND METHODS OF MAKING THE SAME The University of Southern California BLEDSOE, JOSHUA CALEB 1762 §103 Non-Final OA 77d overdue Pending Jun 23, 2022
17697855 Modular Electric Hair-Cutting Devices and Methods Duett, LLC CROSBY JR, RICHARD D 3724 §103§112 Non-Final OA 113d overdue Pending Mar 17, 2022

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