Topic

Hydrogen gas Steady

562 applications whose title mentions it. Its share of new filings over the last two years is 25% above the four years before.

Allowance rate

68%

−8 pts vs the USPTO 469 decided

Months to first action

21.0 mo

+2.4 vs the USPTO

Applications

562.0

in the record

Allowed

318.0

151 abandoned

Filings by year

How often the topic was filed

The most recent years are still filling in.

Where it is examined

Domains and art units

CPC subclasses

C01B125 apps

C25B89 apps

G01N50 apps

F17C34 apps

B01D32 apps

B01J31 apps

Art units

OPAP47 apps

173237 apps

179433 apps

173630 apps

179529 apps

172523 apps

Examiners

Who examines it, and how it fares with each

Docket Central45 apps

Syed Taha Iqbal14 apps

86%

Harry D Wilkins III13 apps

42%

Brian W Cohen12 apps

70%

Nicholas A Smith12 apps

67%

Colin W Slifka11 apps

64%

Douglas Bryant Call10 apps

70%

Matthew J Merkling10 apps

60%

Bars show the share of decided applications that were allowed.

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Who files it

Companies and institutions

KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS12 apps

83%

TOYOTA JIDOSHA KABUSHIKI KAISHA12 apps

64%

Verdagy, Inc.11 apps

56%

INTELLIGENT ENERGY LIMITED10 apps

90%

ENEOS Corporation9 apps

100%

Saudi Arabian Oil Company7 apps

80%

Bars show the share of decided applications that were allowed.

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Who represents them

Law firms and agents

OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P.27 apps

81%

SCHWEGMAN LUNDBERG & WOESSNER, P.A.13 apps

64%

GREENBLUM & BERNSTEIN, P.L.C.11 apps

100%

Muncy, Geissler, Olds & Lowe, P.C.11 apps

45%

OLIFF PLC11 apps

70%

BakerHostetler10 apps

90%

Bars show the share of decided applications that were allowed.

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Applications

Recent applications on this topic

Application	Title	Filed	Status	Rejections	RCEs	To 1st action
19628497	METHOD FOR DETERMINING THE HYDROGEN CONTENT IN THE EXHAUST GAS OF A HYDROGEN INTERN…	2026-09-25	Pending	0	0	n/a
19616357	AUSTENITIC STAINLESS STEEL, AUSTENITIC STAINLESS-STEEL STRIP, SHEET, OR PLATE, PROD…	2026-08-18	Pending	0	0	n/a
19616370	AUSTENITIC STAINLESS STEEL, AUSTENITIC STAINLESS-STEEL STRIP, SHEET, OR PLATE, PROD…	2026-08-18	Pending	0	0	n/a
15984786	Method and apparatus for adaptive signal processing	2012-01-10	Allowed	1	0	12.0 mo
15217873	Composition and method for controlled release	2015-02-11	Abandoned	4	1	23.0 mo
15927297	Distributed ledger transaction verification	2018-03-12	Allowed	3	0	20.0 mo
15747299	Thermal management of battery assemblies	2021-04-13	Pending	2	1	17.0 mo
15475524	Machine learning model for anomaly detection	2012-05-14	Allowed	1	0	14.0 mo
15558480	Wireless power transfer coil arrangement	2015-06-15	Abandoned	4	1	25.0 mo
15546096	Catalyst for selective hydrogenation	2018-07-16	Allowed	3	0	22.0 mo

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