Francis R Thibodeau

US Patent:

51529696, Oct 6, 1992

Filed:

Mar 26, 1991

Appl. No.:

7/677592

Inventors:

Dennis G. Kleid - Foster City CA
William J. Kohr - San Mateo CA
Francis R. Thibodeau - Palo Alto CA

Assignee:

Geobiotics, Inc. - Palo Alto CA

International Classification:

C22B 1100

US Classification:

423 29

Abstract:

A variety of processes for recovering gold from gold ore are disclosed. Briefly, the methods include culturing at least one microorganism species capable of producing cyanide ion under conditions wherein the microorganism produces cyanide ion, thus forming a cyanide ion-containing culture; contacting the cyanide ion-containing culture with gold ore, causing production of gold ion-cyanide ion complexes and biosorption of said complexes to said cultures; and recovering gold from the culture. The invention may be practiced with a variety of microorganisms, including Chromobacterium violcaceum and Chlorella vulgaris.

US Patent:

52905268, Mar 1, 1994

Filed:

Jul 1, 1992

Appl. No.:

7/907919

Inventors:

Dennis G. Kleid - Foster CA
William J. Kohr - San Mateo CA
Francis R. Thibodeau - Oakland CA

Assignee:

Geobiotics, Inc. - Hayward CA

International Classification:

C22B 1100
C22B 300
B01D 1100
C01G 700

US Classification:

423 29

Abstract:

A variety of processes for recovering gold from gold ore are disclosed. Briefly, the methods include culturing at least one microorganism species capable of producing cyanide ion under conditions wherein the microorganism produces cyanide ion, thus forming a cyanide ion-containing culture; contacting the cyanide ion-containing culture with gold ore, causing production of gold ion-cyanide ion complexes and biosorption of said complexes to said cultures; and recovering gold from the culture. The invention may be practiced with a variety of microorganisms, including Chromobacterium violaceum and Chlorella vuloaris.

US Patent:

53784375, Jan 3, 1995

Filed:

Jul 23, 1992

Appl. No.:

7/920187

Inventors:

Dennis G. Kleid - foster City CA
William J. Kohr - San Mateo CA
Francis R. Thibodeau - San Francisco CA

Assignee:

Geobiotics, Inc. - Hayward CA

International Classification:

C22B 1100

US Classification:

423 27

Abstract:

A variety of processes for recovering gold from gold ore are disclosed. Briefly, the methods include culturing at least one microorganism species capable of producing cyanide ion under conditions wherein the microorganism produces cyanide ion, thus forming a cyanide ion-containing culture; contacting the cyanide ion-containing culture with gold ore, causing production of gold ion-cyanide ion complexes and biosorption of said complexes to said cultures; and recovering gold from the culture. The invention may be practiced with a variety of microorganisms, including Chromobacterium violaceum and Chlorella vulgaris.

US Patent:

51621053, Nov 10, 1992

Filed:

Nov 26, 1990

Appl. No.:

7/617978

Inventors:

Dennis G. Kleid - Foster City CA
William J. Kohr - San Mateo CA
Francis R. Thibodeau - San Francisco CA

Assignee:

Geobiotics, Inc. - Palo Alto CA

International Classification:

C22B 1100

US Classification:

423 29

Abstract:

A variety of processes for recovering gold from gold ore are disclosed. Briefly, the methods include culturing at least one microorganism species capable of producing cyanide ion under conditions wherein the microorganism produces cyanide ion, thus forming a cyanide ion-containing culture; contacting the cyanide ion-containing culture with gold ore, causing production of gold ion-cyanide ion complexes and biosorption of said complexes to said cultures; and recovering gold from the culture. The invention may be practiced with a variety of microorganisms, including Chromobacterium violaceum and Chlorella vulgaris.

US Patent:

20150344666, Dec 3, 2015

Filed:

May 28, 2015

Appl. No.:

14/723835

Inventors:

- Minneapolis MN, US
- Honolulu HI, US
Yuqiang Qian - New Brighton MN, US
Gregory Moriarty - Roseville MN, US
Siyao He - Minneapolis MN, US
Francis R. Thibodeau - Oakland CA, US

International Classification:

C08K 3/20
B29C 70/44
B32B 5/02
B32B 27/06
B32B 15/08
B29C 70/78
B32B 27/20

Abstract:

The invention concerns nanofiller composition comprising (i) a nanoparticle; (ii) a plurality of coupling groups bonded to the nanoparticle; (iii) one or more (a) oligomers or (b) organic isocyanate residues bonded to the one or more coupling groups; and, optionally, (iv) one or more dispersing moieties that facilitate dispersion of the nanoparticle bonded to one or more of the coupling groups or organic isocyanate residues; as well as laminates comprising such nanoparticles in at least one layer.

US Patent:

20140275323, Sep 18, 2014

Filed:

Mar 14, 2014

Appl. No.:

14/212401

Inventors:

Francis R. Thibodeau - Oakland CA, US
Yuqiang Qian - New Brighton MN, US
Andreas Stein - Saint Paul MN, US
Christopher W. Macosko - Minneapolis MN, US

International Classification:

C08K 9/04
C09C 3/08

US Classification:

522177, 549543, 549215, 568817, 564458, 556425, 106415, 106487, 106499, 106505, 106481, 525315, 549513

Abstract:

Oligomer-grafted nanofiller compositions and composites including oligomer-grafted nanofillers are disclosed. An oligomer-grafted nanofiller composition for disposition in a polymer matrix, the polymeric matrix comprising polymers derived from a plurality of polymerizable units, can include a nanoparticle, one or more coupling groups bonded to the nanoparticle; and one or more oligomers bonded to the one or more coupling groups. In an embodiment the oligomer is derived from two or more polymerizable units, at least one polymerizable unit being at least substantially similar to at least one of the polymerizable units of the polymer matrix. In another embodiment the oligomer comprises two or more polymerizable units and improves dispersion, interfacial strength, or both dispersion and interfacial strength between the nanoparticle and the polymer matrix. Composites and methods are also disclosed.