Patents
Patents & technical innovation
Four United States patent filings name John P. Dooher as an inventor. Two were granted. The two that were not are shown as abandoned applications, because that is what they are.
All data on this page is taken from patent-office records. Filing dates, publication numbers, grant numbers and current legal status are reproduced as the patent record states them. A published application is not a patent, and this page does not present one as though it were.
Two of the four filings resulted in granted United States patents: US 8,974,557 B2 and US 8,597,386 B2. Of those, the first is in force and the second has lapsed for non-payment of maintenance fees. The remaining two applications were abandoned in the United States; one has a granted Australian counterpart.
Summary
| Title | Publication | Grant | Status |
|---|---|---|---|
| Tunable catalytic gasifiers and related methods | US 2012/0311931 A1 | US 8,974,557 B2 (2015) | Granted, in force |
| Method and system for continuously pumping a solid material and method and system for hydrogen formation | US 2011/0272636 A1 | US 8,597,386 B2 (2013) | Granted, lapsed |
| Methods and systems for gasifying a process stream | US 2009/0320368 A1 | None in the United States | U.S. application abandoned; AU 2007240969 B2 granted |
| Enhanced product gas and power evolution from carbonaceous materials via gasification | US 2010/0129691 A1 | None | Application abandoned |
Full records
Tunable catalytic gasifiers and related methods
- Inventors
- John Dooher
- Applicant / assignee
- Good Earth Power Corp
- Application
- US 13/156,738
- Filed
- 9 June 2011
- Published
- US 2012/0311931 A1, 13 December 2012
- Grant
- US 8,974,557 B2, granted 10 March 2015
- Status
- Granted — in force
Patent office record · Anticipated expiry 3 May 2033.
Method and system for continuously pumping a solid material and method and system for hydrogen formation
- Inventors
- David R. Rubin, John P. Dooher
- Applicant / assignee
- Alliant Techsystems Inc. (subsequently assigned to Northrop Grumman Systems Corporation)
- Application
- US 12/775,290
- Filed
- 6 May 2010
- Published
- US 2011/0272636 A1, 10 November 2011
- Grant
- US 8,597,386 B2, granted 3 December 2013
- Status
- Granted — lapsed for non-payment of maintenance fees
Patent office record · Anticipated expiry 26 November 2031.
Methods and systems for gasifying a process stream
- Inventors
- Marco J. Castaldi, John P. Dooher, Klaus S. Lackner
- Applicant / assignee
- Current assignees of record: John P. Dooher Trust; The Trustees of Columbia University in the City of New York
- Application
- US 12/295,099
- Filed
- 30 March 2007 (priority 31 March 2006)
- Published
- US 2009/0320368 A1, 31 December 2009
- Grant
- No United States patent granted
- Status
- U.S. application abandoned; corresponding Australian patent AU 2007240969 B2 granted
Patent office record · International family: WO 2007/123776 A2, EP 2007674 A2/A4, CN 101448730 A, AU 2007240969 B2.
Enhanced product gas and power evolution from carbonaceous materials via gasification
- Inventors
- John Dooher, Marco Castaldi
- Applicant / assignee
- Good Earth Power Corp
- Application
- US 12/624,465
- Filed
- 24 November 2009 (priority 26 November 2008)
- Published
- US 2010/0129691 A1, 27 May 2010
- Grant
- No patent granted
- Status
- Application abandoned
Relationship to the Institute
These filings are held by their respective applicants and assignees, which include Good Earth Power Corp, Alliant Techsystems Inc. (subsequently Northrop Grumman Systems Corporation), the John P. Dooher Trust and the Trustees of Columbia University in the City of New York. None is assigned to the Dooher Institute of Physics and Energy, and the Institute does not claim ownership of, or license to, any of them. They are recorded here as part of the founder’s technical record.
Sources: patent-office records for each filing, linked above, and the inventor index, all accessed 31 August 2026.