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Pedro B. Macedo
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Bethesda, MD, US
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Patents Grants
last 30 patents
Information
Patent Grant
Air bubbler to increase glass production rate
Patent number
6,334,337
Issue date
Jan 1, 2002
Pedro Buarque de Macedo
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Method and apparatus for eliminating volatiles or airborne entrainm...
Patent number
5,678,236
Issue date
Oct 14, 1997
De Macedo; Pedro Buarque
Pedro B. Macedo
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Off-gas scrubber system
Patent number
5,405,590
Issue date
Apr 11, 1995
Macedo; Pedro Buarque de
Pedro B. D. Macedo
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for vitrifying asbestos containing waste, infectious waste,...
Patent number
5,340,372
Issue date
Aug 23, 1994
Macedo; Pedro Buarque de
Pedro B. Macedo
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Process for vitrifying asbestos containing waste, infectious waste,...
Patent number
5,188,649
Issue date
Feb 23, 1993
Macedo; Pedro Buarque de
Pedro B. Macedo
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Ion exchange compositions
Patent number
4,902,426
Issue date
Feb 20, 1990
Macedo; Pedro B.
Pedro B. Macedo
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Purification of contaminated liquid
Patent number
4,737,316
Issue date
Apr 12, 1988
Macedo; Pedro B.
Pedro B. Macedo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of separating and purifying cations by ion exchange with reg...
Patent number
4,687,581
Issue date
Aug 18, 1987
Macedo; Pedro B.
Pedro B. Macedo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Fixation of anionic materials with a complexing agent
Patent number
4,659,477
Issue date
Apr 21, 1987
Macedo; Pedro B.
Pedro B. Macedo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Fixation of dissolved metal species with a complexing agent
Patent number
4,659,512
Issue date
Apr 21, 1987
Macedo; Pedro B.
Pedro B. Macedo
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Ion exchanger to separate heavy alkali metal ions
Patent number
4,654,146
Issue date
Mar 31, 1987
Macedo; Pedro B.
Aaron Barkatt
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process of using improved silica-based chromatographic supports con...
Patent number
4,648,975
Issue date
Mar 10, 1987
Macedo; Pedro B.
Aaron Barkatt
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Purification of contaminated liquid
Patent number
4,591,455
Issue date
May 27, 1986
Macedo; Pedro B.
Pedro B. Macedo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of producing shaped foamed-glass articles
Patent number
4,552,577
Issue date
Nov 12, 1985
Macedo; Pedro B.
Deepak Varshneya
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Fixation by anion exchange of toxic materials in a glass matrix
Patent number
4,544,499
Issue date
Oct 1, 1985
Macedo; Pedro B.
Danh C. Tran
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Immobilization of radwastes in glass containers and products formed...
Patent number
4,528,011
Issue date
Jul 9, 1985
Macedo; Pedro B.
Pedro B. Macedo
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Grant
Fixation by ion exchange of toxic materials in a glass matrix
Patent number
4,469,628
Issue date
Sep 4, 1984
Catherine J. Simmons
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical sensing apparatus and method
Patent number
4,443,700
Issue date
Apr 17, 1984
Macedo; Pedro B.
Pedro B. Macedo
G02 - OPTICS
Information
Patent Grant
Method of producing a strong optical fiber
Patent number
4,362,542
Issue date
Dec 7, 1982
Macedo; Pedro B.
Pedro B. Macedo
G02 - OPTICS
Information
Patent Grant
Fixation of radioactive materials in a glass matrix
Patent number
4,362,659
Issue date
Dec 7, 1982
Macedo; Pedro B.
Pedro B. Macedo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical sensing apparatus and method
Patent number
4,342,907
Issue date
Aug 3, 1982
Macedo; Pedro B.
Pedro B. Macedo
G02 - OPTICS
Information
Patent Grant
Fixation by anion exchange of toxic materials in a glass matrix
Patent number
4,333,847
Issue date
Jun 8, 1982
Macedo; P. B.
Danh C. Tran
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Silica removal process and alumina composition used therein
Patent number
4,332,031
Issue date
May 25, 1982
Macedo; Pedro B.
Aaron Barkatt
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method of leaching glass preforms
Patent number
4,319,905
Issue date
Mar 16, 1982
Pedro B. Macedo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method for producing a strengthened glass structural member
Patent number
4,313,748
Issue date
Feb 2, 1982
Pedro B. Macedo
G02 - OPTICS
Information
Patent Grant
Immobilization of radwastes in glass containers and products formed...
Patent number
4,312,774
Issue date
Jan 26, 1982
Macedo; Pedro B.
Pedro B. Macedo
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Grant
Method of producing a glass article having a graded refractive inde...
Patent number
4,302,231
Issue date
Nov 24, 1981
De Macedo; Pedro Manoel Buarque
Pedro B. Macedo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Joint doping of porous glasses to produce materials with high modif...
Patent number
4,299,608
Issue date
Nov 10, 1981
De Macedo; Pedro Buarque
Pedro B. Macedo
G02 - OPTICS
Information
Patent Grant
Optical waveguide and method and compositions for producing same
Patent number
4,236,930
Issue date
Dec 2, 1980
Pedro B. Macedo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Fixation of radioactive materials in a glass matrix
Patent number
4,224,177
Issue date
Sep 23, 1980
Macedo; Pedro B.
Pedro B. Macedo
C03 - GLASS MINERAL OR SLAG WOOL