Prosecution Insights
Last updated: October 25, 2026

Pearne and Gordon, LLP

Technology area: Medical Devices & Mechanical Engineering

7 pending office actions • 6 clients • 7 examiners • 6 art units • 0 of 7 (0%) have an AI response strategy ready

Analysis

PEARNE & GORDON LLP handles Medical Devices & Mechanical Engineering matters and has 6 pending office actions. The firm reports 10155 career applications, creating an extensive historical record behind the current docket.

The resolved allowance rate is 82.82%, with an average of 3.2 office actions per allowance. These metrics distinguish outcome performance from the amount of examination activity associated with allowed matters. Practitioners reviewing the profile can consider the active workload together with the firm’s documented experience in medical-device and mechanical-engineering prosecution.

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

Quality Metrics (n=10155 apps, methodology: how we score firms)

82.8%
Allowance Rate
n=10155
+0.55σ
Allowance Rate (norm)
n=10155
3.2
OAs to Allowance
n=7483
-0.12σ
OAs to Allow (norm)
n=7483
1130 days
Time to Allowance
n=7483
+7.6pp
Interview Lift
n=10155
22.2%
RCE Rate
n=10155
2.1%
Appeal Rate
n=10155

Rejection Performance (% of received rejections ultimately overcome)

78.8%
§101 Overcome
n=391
80.9%
§102 Overcome
n=2638
82.9%
§103 Overcome
n=4476
85.0%
§112 Overcome
n=3260

Specialization & Scale

H01L, H10P, Y10T
Top CPC Subclasses
11%
Top-3 CPC Share
n=10155
20
Practitioners
n=10155
507.8
Apps / Practitioner
n=10155

Portfolio Summary

7
Total Pending OAs
5
Non-Final OAs
2
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.

1
Overdue
0
Due this week
2
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 (1)Due ≤ 30 days (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.

5
Hard (71%)
2
Medium (29%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 only1 (14%)
§101 + other2 (29%)
§103 only2 (29%)
Multi-statute (no §101)2 (29%)

Industry Mix

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

1
Life Sciences
14% of docket
1
Information Tech
14% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
3
Mechanical / Eng
43% of docket
2
Business / Other
29% 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.

70 h
Manual time on pending OAs
14 h
Time saved (low, 20%)
24 h
Time saved (mid, 35%)
0.6 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
GLASS, ERICK DAVID 1 89.7% +7.0%
NGUYEN, MAIKHANH 1 87.1% +29.7%
TIEN, LUCY MINYU 1 59.1% +36.8%
CAZAN, LIVIUS RADU 1 62.9% +24.9%
KASZTEJNA, MATTHEW JOHN 1 64.5% +13.1%
WEN, KEVIN GUANHUA 1 61.3% +39.4%
PARK, EVELYN GRACE 1 51.6% +40.5%

Hard Cases (5)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 5 ordered by deadline are shown.

App #TitleExaminerDue in
18267654 MAGNETIC STIRRER KASZTEJNA, MATTHEW JOHN 19d overdue
17533479 METHOD FOR DETERMINING THE METABOLIC PARAMETERS OF A SUBJECT PARK, EVELYN GRACE 22d
18629025 METHOD FOR OPERATING AN ELEVATOR SYSTEM, COMPUTER DEVICE GLASS, ERICK DAVID —
18285843 METHOD AND KIT FOR RECOGNISING A USER OF A FOOTWEAR ARTICLE OR AN ACTIVITY PERFORMED BY A USER OF A FOOTWEAR ARTICLE NGUYEN, MAIKHANH —
18485471 METHOD FOR METALLISING A THERMOELECTRIC STRUCTURE CAZAN, LIVIUS RADU —

Interview Candidates (6)

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 6 ordered by deadline are shown.

App #TitleExaminerDue in
18267654 MAGNETIC STIRRER KASZTEJNA, MATTHEW JOHN 19d overdue
17896307 OVEN FOR BAKING FOOD PRODUCTS WEN, KEVIN GUANHUA 15d
17533479 METHOD FOR DETERMINING THE METABOLIC PARAMETERS OF A SUBJECT PARK, EVELYN GRACE 22d
18285843 METHOD AND KIT FOR RECOGNISING A USER OF A FOOTWEAR ARTICLE OR AN ACTIVITY PERFORMED BY A USER OF A FOOTWEAR ARTICLE NGUYEN, MAIKHANH —
18573044 COSMETIC COMPOSITION FOR THE HAIR AND USE THEREOF FOR HAIR AND/OR SCALP CARE TIEN, LUCY MINYU —
18485471 METHOD FOR METALLISING A THERMOELECTRIC STRUCTURE CAZAN, LIVIUS RADU —

Client Portfolio (6 clients)

Top Art Units

Art UnitApps
21441
16121
37291
39931
37611
37911

Pending Office Actions

App #TitleClientExaminerArt UnitStatutesStatusDue inAIFiled
18629025 METHOD FOR OPERATING AN ELEVATOR SYSTEM, COMPUTER DEVICE Tsg Technische Service Gesellschaft Mbh GLASS, ERICK DAVID §101§102 Non-Final OA — Pending Apr 08, 2024
18285843 METHOD AND KIT FOR RECOGNISING A USER OF A FOOTWEAR ARTICLE OR AN ACTIVITY PERFORMED BY A USER OF A FOOTWEAR ARTICLE Zhor Tech NGUYEN, MAIKHANH 2144 §101§102 Non-Final OA — Pending Feb 09, 2024
18573044 COSMETIC COMPOSITION FOR THE HAIR AND USE THEREOF FOR HAIR AND/OR SCALP CARE Pierre Fabre Dermo-Cosmetique TIEN, LUCY MINYU 1612 §103 Final Rejection — Pending Dec 21, 2023
18485471 METHOD FOR METALLISING A THERMOELECTRIC STRUCTURE COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES CAZAN, LIVIUS RADU 3729 §103§112 Non-Final OA — Pending Oct 12, 2023
18267654 MAGNETIC STIRRER Electrolux Appliances Aktiebolag KASZTEJNA, MATTHEW JOHN 3993 §102§112 Non-Final OA 19d overdue Pending Jun 15, 2023
17896307 OVEN FOR BAKING FOOD PRODUCTS Electrolux Home Products Corporation N. V. WEN, KEVIN GUANHUA 3761 §103Other Final Rejection 15d Pending Aug 26, 2022
17533479 METHOD FOR DETERMINING THE METABOLIC PARAMETERS OF A SUBJECT UNIVERSITE DE PARIS-SACLAY PARK, EVELYN GRACE 3791 §101 Non-Final OA 22d Pending Nov 23, 2021

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Frequently Asked Questions

What is Pearne and Gordon, LLP's patent allowance rate?

82.8% of resolved applications prosecuted by Pearne and Gordon, LLP were allowed, across 10,155 applications in USPTO records.

How many office actions does Pearne and Gordon, LLP average before allowance?

3.20 office actions per allowed application on average.

How many pending office actions does Pearne and Gordon, LLP have?

7 pending office actions as of October 2026, for 6 clients, before 7 examiners in 6 art units.

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