| 5707993 |
Glycine anhydride dimethylol as a biocide and preservative |
Philip A. Berke |
1998-01-13 |
| 5593681 |
Glycine anhydride dimethylol as a biocide and preservative |
Philip A. Berke |
1997-01-14 |
| 5244653 |
Glycine anhydride dimethylol as a biocide and preservative |
Philip A. Berke |
1993-09-14 |
| 5240015 |
Wetted impact barrier for the reduction of tar and nicotine in cigarette smoke |
David I. Rosen, Adam Rosen |
1993-08-31 |
| 5158099 |
Wetted impact barrier for the reduction of tar and nicotine in cigarette smoke |
David I. Rosen, Adam Rosen |
1992-10-27 |
| 4980176 |
Preservative compositions and uses thereof |
Philip A. Berke |
1990-12-25 |
| 4821745 |
Apparatus and method for overcoming the habit of tobacco smoking |
David I. Rosen |
1989-04-18 |
| RE32848 |
Anti-microbial reaction product of #9 allantoin and formaldehyde |
Philip A. Berke |
1989-01-31 |
| 4581351 |
Composition of matter containing imidazolidinyl urea and pyrithione and its derivatives |
Philip A. Berke |
1986-04-08 |
| 4525480 |
Composition of matter containing cinnamaldehyde and parabens |
Philip A. Berke |
1985-06-25 |
| 4487939 |
N-(hydroxymethyl)-N-(1,3-dihydroxymethyl-2,5-dioxo-4-imidazolidinyl)-N'-( hydroxymethyl)urea |
Philip A. Berke |
1984-12-11 |
| 4459303 |
Antimicrobial preservative compounds |
Philip A. Berke |
1984-07-10 |
| 4454133 |
Antimicrobial compounds |
Philip A. Berke |
1984-06-12 |
| 4337269 |
Preservative compositions |
Philip A. Berke |
1982-06-29 |
| 4271176 |
N-(Hydroxymethyl)-N-(1 ,3-dihydroxymethyl-2,5-dioxo-4-imidazolidinyl)-N'-(hydroxymethyl)urea used as a preservative agent |
Philip A. Berke |
1981-06-02 |