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Class Information
Number: 436/42
Name: Chemistry: analytical and immunological testing > Determination of water > By use of a karl fischer reagent
Description: Processes or compositions in which a reagent composed of a solution including iodine and sulfur dioxide is used to determine the presence, or amount of water.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7419831 |
Method and apparatus for determination of water and for normal phase liquid chromatography |
Sep. 2, 2008 |
| 7416894 |
Stable water standard |
Aug. 26, 2008 |
| 7247485 |
Karl Fischer reagent |
Jul. 24, 2007 |
| 7214537 |
Real-time component monitoring and replenishment system for multicomponent fluids |
May. 8, 2007 |
| 7182912 |
Fluid handling apparatus for an automated analyzer |
Feb. 27, 2007 |
| 7138240 |
Methods of assaying receptor activity |
Nov. 21, 2006 |
| 7122376 |
Calibration standards, methods, and kits for water determination |
Oct. 17, 2006 |
| 7049146 |
Calibration standards, methods, and kits for water determination |
May. 23, 2006 |
| 6946298 |
Karl fischer reagent |
Sep. 20, 2005 |
| 6372505 |
Process and apparatus for titrating |
Apr. 16, 2002 |
| 6315888 |
Method of constant-current polarization voltage and apparatus for Karl-Fischer technique |
Nov. 13, 2001 |
| 6131442 |
Method of wood chip moisture analysis |
Oct. 17, 2000 |
| 5962328 |
Electrolytic solution fork Karl Fischer coulometric titration and method for water content determination using the electrolytic solution |
Oct. 5, 1999 |
| 5750404 |
Reagent for the determination of water AMD ene-diols or thiols |
May. 12, 1998 |
| 5567618 |
Karl Fischer reagent |
Oct. 22, 1996 |
| 5466606 |
Use of N-methylformamide as solvent for the Karl Fischer titration |
Nov. 14, 1995 |
| 5466606 |
Use of N-methylformamide as solvent for the Karl Fischer titration |
Nov. 14, 1995 |
| 5453377 |
Methods for making iodine-free Karl Fischer reagents |
Sep. 26, 1995 |
| 5401662 |
Method and reagent for the determination of water |
Mar. 28, 1995 |
| 5389545 |
Reagents, methods and kits for water determination |
Feb. 14, 1995 |
| 5340541 |
Automated Karl Fischer titration apparatus and method |
Aug. 23, 1994 |
| 5292413 |
Catholyte for the Karl Fischer coulometric water determination |
Mar. 8, 1994 |
| 5246863 |
Karl Fischer titration techniques |
Sep. 21, 1993 |
| 5187101 |
Electrolytic solution for Karl Fischer's coulometric titration and method for measuring water content using same |
Feb. 16, 1993 |
| 5179024 |
Sealed vials containing improved Karl Fischer solutions, and process for water determination using these vials |
Jan. 12, 1993 |
| 5139955 |
Reagent, cell and method for the coulometric determination of water |
Aug. 18, 1992 |
| 5102804 |
Karl-Fischer reagent, kit, and a process for the determination of water with the aid of this reagent |
Apr. 7, 1992 |
| 5086000 |
Process for the preparation of alkylene-bis(2-pyridylamine) compounds and Karl Fischer reagents and methods utilizing such compounds |
Feb. 4, 1992 |
| 4929314 |
Coulometric titrator apparatus and method |
May. 29, 1990 |
| 4874709 |
Solvent and method for the Karl-Fischer determination of water |
Oct. 17, 1989 |
| 4851352 |
Solvent composition for the determination of water by the Karl Fischer method |
Jul. 25, 1989 |
| 4802957 |
Method for measuring the water content of a solid sample using Karl Fischer's coulometric titration |
Feb. 7, 1989 |
| 4786602 |
Method for colorimetric analysis of water content |
Nov. 22, 1988 |
| 4748126 |
Pyridine-free Karl-Fischer reagent and a process for the determination of water therewith |
May. 31, 1988 |
| 4740471 |
Karl Fischer titration agent and method |
Apr. 26, 1988 |
| 4725552 |
Karl Fischer reagent and its use |
Feb. 16, 1988 |
| 4720464 |
Electrolytes for Karl Fischer coulometric titration |
Jan. 19, 1988 |
| 4703014 |
Karl-Fischer reagent and process for the determination of water |
Oct. 27, 1987 |
| 4664756 |
Method of detecting electrode potential in Karl Fischer moisture meter |
May. 12, 1987 |
| 4647542 |
Karl Fischer reagent and method for determining water by means of this reagent |
Mar. 3, 1987 |
| 4619900 |
Solvent for the determination of water by the Karl Fischer method |
Oct. 28, 1986 |
| 4550083 |
Karl-Fischer reagent and procedure for the determination of water using it |
Oct. 29, 1985 |
| 4429048 |
Aliphatic amine-containing Karl Fischer titration agent and method for using it |
Jan. 31, 1984 |
| 4416997 |
Pyridine-free Karl Fischer reagent useful in determining water |
Nov. 22, 1983 |
| 4385124 |
Reagent for the quantitative determination of water and its use therefor |
May. 24, 1983 |
| 4378972 |
Titration agent and method for using same |
Apr. 5, 1983 |
| 4354853 |
Karl Fischer reagent and its use |
Oct. 19, 1982 |
| 4351744 |
Karl-Fischer Reagent |
Sep. 28, 1982 |
| 4295990 |
Reagent for the quantitative determination of water |
Oct. 20, 1981 |
| 4211614 |
Endpoint drift correction for automatic titrations |
Jul. 8, 1980 |
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