Company or institution

IMMUNOGEN, INC.

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293 applicationsfiled 2006 to 2026

Allowance rate

67%

−9 pts vs the USPTO range 61% to 72%

Rejections before allowance

1.5

level with the USPTO

Months to first action

11.9 mo

−6.7 vs the USPTO

Needed an RCE

18%

−9 pts vs the USPTO

Timeline

Applications by filing year: drag across the years to study a period

Allowed in green, abandoned in red, pending in grey. The figures above and the charts that can be recomputed by filing year follow the span you pick.

Compared with the office

Against every applicant before the USPTO

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Trend

Allowance by filing year

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Domains

Where the applications fall

CPC subclasses

A61K Medical preparations151 apps

C07K Peptides57 apps

C07D Heterocyclic compounds52 apps

C07C 12 apps

G01N Investigating or analysing materials7 apps

H01R 5 apps

Art units

162459 apps

164348 apps

164224 apps

164618 apps

162517 apps

164414 apps

Examiners met

The examiners seen most, and how it went with each

Bruck Kifle53 apps

85%

Hong Sang16 apps

73%

Docket Central10 apps

n/a

Sheela Jitendra Huff10 apps

70%

Phuong N Huynh10 apps

30%

Yan Xiao9 apps

11%

Karl J Puttlitz8 apps

33%

Ruixiang Li7 apps

57%

Bars show the share of decided applications that were allowed.

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Who represents them

Law firms and agents on their applications

McCarter & English, LLP/ImmunoGen95 apps

72%

Sterne, Kessler, Goldstein & Fox P.L.L.C.59 apps

56%

Nixon & Vanderhye PC / ImmunoGen, Inc.58 apps

56%

McCarter & English/ImmunoGen/Abbvie46 apps

93%

Sughrue Mion/IMMUNOGEN9 apps

78%

SUGHRUE MION, PLLC8 apps

75%

JOYCE VON NATZMER5 apps

40%

DO NOT USE - Leydig, Voit & Mayer, Ltd.4 apps

Bars show the share of decided applications that were allowed.

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Rejection fingerprint

What gets rejected, by statute

Share of parsed office actions raising each ground; blue is the USPTO.

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What works

Allowance by strategy used

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Interviews

Does an interview help?

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Applications

Every application in the record

Application	Title	Filed	Status	Rejections	RCEs	To 1st action
19450349	ANTIBODIES AND ASSAYS FOR DETECTION OF FOLATE RECEPTOR 1	2026-01-15	Pending	0	0	n/a
19297369	BIPARATOPIC FR-ALPHA ANTIBODIES AND IMMUNOCONJUGATES	2025-08-12	Pending	0	0	n/a
19296686	MAYTANSINOID DERIVATIVES WITH SELF-IMMOLATIVE PEPTIDE LINKERS AND CONJUGATES THEREOF	2025-08-11	Pending	0	0	n/a
15161306	Method and apparatus for adaptive signal processing	2012-01-10	Allowed	1	0	12.0 mo
15845607	Composition and method for controlled release	2015-02-11	Abandoned	4	1	23.0 mo
15495098	Distributed ledger transaction verification	2018-03-12	Allowed	3	0	20.0 mo
15886363	Thermal management of battery assemblies	2021-04-13	Pending	2	1	17.0 mo
15580272	Machine learning model for anomaly detection	2012-05-14	Allowed	1	0	14.0 mo
15738363	Wireless power transfer coil arrangement	2015-06-15	Abandoned	4	1	25.0 mo
15878546	Catalyst for selective hydrogenation	2018-07-16	Allowed	3	0	22.0 mo

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