Susan M. Ehrhardt — 13 Patents at Hercules

Susan M. Ehrhardt has been granted 13 US patents while listed as an inventor at Hercules. The first was granted in 1997 and the most recent in December 2020. Susan M. Ehrhardt ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Susan M. Ehrhardt in Haddonfield, NJ, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10865525	Biopolymer sizing agents	Daniel F. Varnell	2020-12-15
10865526	Method for improving the resistance of paper and paperboard to aqueous penetrants	Daniel F. Varnell	2020-12-15
10597824	Compositions and methods for improving properties of lignocellulosic materials	Cecil Coutinho	2020-03-24
9028650	Method of sizing paper	Kyle J. Bottorff	2015-05-12
8871055	Sizing compositions	—	2014-10-28
8632659	Paper sizing composition	Kyle J. Bottorff	2014-01-21
7854800	Alkanolamine-stabilized dispersed rosin sizing agents and their preparation	—	2010-12-21
6316095	2-oxetanone sizing agents and their use in paper	Donald K. Black, Kyle J. Bottorff, Clement L. Brungardt, David H. Dumas, John C. Gast +1 more	2001-11-13	$5,895,000
6273997	Rosin/hydrocarbon resin size for paper	D. Bruce Evans	2001-08-14	$13,192,000
6228219	Rosin sizing at neutral to alkaline pH	D. Bruce Evans	2001-05-08	$7,808,000
6033526	Rosin sizing at neutral to alkaline pH	D. Bruce Evans	2000-03-07	$17,548,000
6007906	Process of using fine paper containing 2-oxetanone sizing agent in high speed precision converting or reprographic operations	Kyle J. Bottorff, Clement L. Brungardt, David H. Dumas, John C. Gast, Jian Zhang	1999-12-28	$29,087,000
5685815	Process of using paper containing alkaline sizing agents with improved conversion capability	Kyle J. Bottorff, Clement L. Brungardt, David H. Dumas, John C. Gast, Jian Zhang	1997-11-11	$12,688,000

Susan M. Ehrhardt — 13 Patents

Issued Patents All Time

Patent Widget