Herbert H. Espy

Person

Wilmington, DE, US

People

Patents Grantslast 30 patents

Information Patent Grant
Repulping wet strength paper and paperboard with persulfate and a c...
- Patent number 5,674,358
- Issue date Oct 7, 1997
- Hercules Incorporated
- Herbert H. Espy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Oligoamide-epichlorohydrin resins as drainage aids
- Patent number 5,656,699
- Issue date Aug 12, 1997
- Hercules Incorporated
- Sunil Priya Dasgupta
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Synthesis of creping aids based on polyamides containing methyl bis...
- Patent number 5,338,807
- Issue date Aug 16, 1994
- Hercules Incorporated
- Herbert H. Espy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Absorbance and permanent wet-strength in tissue and toweling paper
- Patent number 5,316,623
- Issue date May 31, 1994
- Hercules Incorporated
- Herbert H. Espy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Enhancement of tissue paper softness with minimal effect on strength
- Patent number 5,275,698
- Issue date Jan 4, 1994
- Hercules Incorporated
- Sunil P. Dasgupta
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Conversion of solid dicyclopentadiene to a liquid monomer for use i...
- Patent number 4,751,337
- Issue date Jun 14, 1988
- Hercules Incorporated
- Herbert H. Espy
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Absorbent material
- Patent number 4,458,042
- Issue date Jul 3, 1984
- Hercules Incorporated
- Herbert H. Espy
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Cationic water soluble polymeric reaction product of polyaminopolyu...
- Patent number 3,966,684
- Issue date Jun 29, 1976
- Hercules Incorporated
- Herbert H. Espy
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cationic water soluble polymeric reaction product of poly(diallylam...
- Patent number 3,966,694
- Issue date Jun 29, 1976
- Hercules Incorporated
- Herbert H. Espy
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cationic water soluble resinous reaction product of polyaminopolyam...
- Patent number 3,951,921
- Issue date Apr 20, 1976
- Hercules Incorporated
- Herbert H. Espy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Herbert H. Espy

Person

Patents Grantslast 30 patents

Repulping wet strength paper and paperboard with persulfate and a c...

Oligoamide-epichlorohydrin resins as drainage aids

Synthesis of creping aids based on polyamides containing methyl bis...

Absorbance and permanent wet-strength in tissue and toweling paper

Enhancement of tissue paper softness with minimal effect on strength

Conversion of solid dicyclopentadiene to a liquid monomer for use i...

Absorbent material

Cationic water soluble polymeric reaction product of polyaminopolyu...

Cationic water soluble polymeric reaction product of poly(diallylam...

Cationic water soluble resinous reaction product of polyaminopolyam...