IP Library › Granted Patent US 8,642,057
Granted Patent B2
US 8,642,057 · App. 13/308,105 · Granted Feb 4, 2014

Antimicrobial and antiodor solutions and delivery systems

Inventors: Kenneth R. Code (Edmonton, CA); Joseph L. Provenzano (Huntington Beach, CA); Richard D. Bickerstaff (Phoenix, AZ)
Assignee: Biolargo Life Technologies, Inc.
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Quick Facts
Patent No.
US 8,642,057
App. No.
13/308,105
Granted
Feb 4, 2014
Kind
B2
Abstract

Antimicrobial solutions and delivery systems for them use liquid antimicrobial solutions with: at least 80% of total weight of a carrier liquid comprising water, alcohol or a mixture of water and alcohol; at least 0.0001% by weight of the solution of I 2 ; at least 0.0001% by weight of CuSO 4 ; and sufficient acid in the solution top provide a pH of less than 7.0. A buffering system is also preferable in the solution, and the solution may be provided directly as a liquid, as a spray, as a gel, imbibed and carried in a wipe, encapsulated solution, segregated droplets of solution (in carrying layers of particles, dispersed in a solid of gel carrier) and the like.

Claims (6)

1. A liquid antimicrobial solution comprising: at least 80% of total weight of a carrier liquid comprising water, alcohol or a mixture of water and alcohol; at least 0.001% by weight of the solution of I 2 ; and sufficient acid in the solution to provide a pH of less than 6.5, and the solution further comprising IK and at least 0.005% by weight of CuSO 4 , a sulfamic acid compound and a buffering agent.

2. The solution of claim 1 wherein the acid comprises a sulfamic acid compound having the formula: NR 2 SO 3 H, wherein R is independently selected from the group consisting of hydrogen and electron-withdrawing groups.

3. The solution of claim 1 wherein the acid comprises a sulfamic acid compound having the formula: NR 2 SO 3 H, wherein R is independently selected from the group consisting of hydrogen, halogen, cyano, C1-C6 alkyl, C1 to C6 substituted alkyl, perhalo alkyl, halosubstituted alkyl, and electron-withdrawing groups.

4. The solution of claim 3 wherein at least one R is hydrogen.

5. The solution of claim 1 wherein the buffering agent comprises a carbonate, bicarbonate or phosphate.

6. The solution of claim 3 wherein the buffering agent comprises a carbonate, bicarbonate or phosphate.

Continuity (3)
Continuation In Part 12009586 · Jan 18, 2008
Provisional Application 61490448 · May 26, 2011
Related Publication 20120087965A1 · Apr 12, 2012