Cheryl D Stevenson

US Patent:

20100288628, Nov 18, 2010

Filed:

May 12, 2010

Appl. No.:

12/800296

Inventors:

Cheryl D. Stevenson - Bloomington IL, US
John Perrin Davis - Bloomington IL, US

International Classification:

C25B 9/06

US Classification:

204242

Abstract:

A new invention in cathode composition, arrangement, and design for primary and secondary batteries that offers high power, high capacity, and high specific energy is proposed herein. The claimed technology described herein incorporates materials into the cathode that results in a cathode which may accept two electrons per active site. Other advantages of the technology included herein include: 1) lower cost, 2) environmental friendliness, 3) safety, 4) a wide operational temperature range, 5) backwards compatibility with present electrochemical cells, and 6) versatility. The technology is cross-cutting, and has high impact applications, such as for electric vehicles, which require both high power and high specific energy.

US Patent:

20110232178, Sep 29, 2011

Filed:

Mar 23, 2011

Appl. No.:

13/065521

Inventors:

John Perrin Davis - Bloomington IL, US
Cheryl D. Stevenson - Bloomington IL, US

International Classification:

A01G 1/00
C07D 305/14
C07D 493/10
C07D 319/02
C07C 61/29
C07C 61/40
C07C 61/35
C07C 255/47
C07C 211/41
C07C 49/617
C07C 49/693
C07C 49/653
C07F 7/18
C07C 69/74
C07C 69/757
C07C 69/743

US Classification:

47 581LS, 549263, 549332, 549274, 562498, 558429, 564458, 568369, 556464, 556416, 556417, 556418, 556423, 556413, 556438, 556446, 556449, 560116, 560117

Abstract:

Compounds and methods that release 1-methylcyclopropene, 1-trifluoromethylcyclopropene, and other substituted cyclopropenes are disclosed. The compounds and methods overcome present limitations for storage, transportation, and application of the cyclopropene containing compounds by using light, including sunlight, and/or heat as the primary release trigger. Additional products released include innocuous gases and value added aryl-group compounds.

US Patent:

20130001081, Jan 3, 2013

Filed:

Jun 29, 2012

Appl. No.:

13/507462

Inventors:

John Perrin Davis - Bloomington IL, US
Cheryl D. Stevenson - Bloomington IL, US

International Classification:

G01N 27/26

US Classification:

204406, 204400, 204415

Abstract:

A simple and low cost device to detect the presence of mercury or other trace metals in the environment and quantify said concentration by spectrophotometric, colorimetric, or electrical conductivity is disclosed. Owing to its small size, it is suitable for portable mercury detectors or detectors that may be worn as badges in the breathing zone of workers.

US Patent:

20130281296, Oct 24, 2013

Filed:

Jun 4, 2013

Appl. No.:

13/986772

Inventors:

Cheryl D. Stevenson - Bloomington IL, US
John Perrin Davis - Bloomington IL, US

International Classification:

A01N 27/00

US Classification:

504118, 549332, 504357, 549274, 568369, 570129

Abstract:

Compounds and methods that release 1-methylcyclopropene, 1-trifluoromethylcyclopropene, and other substituted cyclopropenes are disclosed. The compounds and methods overcome present limitations for storage, transportation, and application of the cyclopropene containing compounds by using light, including sunlight, and/or heat as the primary release trigger. Additional products released include innocuous gases and value added aryl-group compounds.