Inventor

John J. Ostermaier

Inventor

Orange, TX, US

Overview

1976–2018

Patent span

Chemistry

Primary field (CPC C)

Patents· 28 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Cprimary

C07CAcyclic or carbocyclic compounds31%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium22%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry16%

C07DHeterocyclic compounds10%

C22BProduction and refining of metals8%

B01DSeparation4%

C01GCompounds containing metals not covered by subclasses c01d or c01f4%

C10GCracking hydrocarbon oils2%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

Y10TTechnical subjects covered by former us classification2%

PatentTitleYear

9,981,257Metal-ligand catalyst formation2018 9,371,346'Preparing a nickel phosphorus ligand complex'2016 9,371,343'Nickel metal compositions and nickel complexes derived from basic nickel carbonates'2016 9,024,049'Nickel compositions for preparing nickel metal and nickel complexes'2015 8,969,606'Calcination and reduction process including a fluidizing bed reactor'2015 8,815,186'Nickel compositions for preparing nickel metal and nickel complexes'2014 8,101,790'Process for improving adiponitrile quality'2012 7,678,906'Process for making triphenylboron-pyridine compound'2010 7,517,985'Process for making solid triphenylboron-pyridine or its adduct'2009 7,468,119'Separation of 6-aminocapronitrile and hexamethylenediamine from a mixture comprising hexamethylenediamine, 6-aminocapronitrile and tetrahydroazepine'2008 7,390,897'Method for making caprolactam from impure 6-aminocapronitrile'2008 7,208,632'Separation of 6-aminocapronitrile and hexamethylenediamine from a mixture comprising hexamethylenediamine, 6-aminocapronitrile and tetrahydroazepine'2007 7,060,820'Process for making caprolactam'2006 7,060,819'Process for producing hexamethylenediamine and aminocapronitrile from adiponitrile, wherein the hexamethylenediamine contains less than 100 ppm tetrahydroazepine'2006 6,887,352'Distillative method for separating hexamethylenediamine from a mixture comprising hexamethylenediamine, 6-aminocapronitrile and tetrahydroazepine'2005 6,858,728'Method for making caprolactam from impure ACN in which THA is not removed until after caprolactam is produced'2005 6,716,977'Method for making caprolactam from impure ACN wherein ammonia and water are removed from crude caprolactam in a simple separation step and then THA is removed from the resulting caprolactam melt'2004 6,599,398'Recovery of adiponitrile from a mixture of adiponitrile, aminocapronitrile and hexamethylenediamine'2003 6,461,481'Process for removing water from organoborane compounds'2002 6,331,651'Process for making hexamethylene diamine using ozone-treated adiponitrile that contains phosphorous compounds'2001 6,248,926'Recovery of hexamethylenediamine (HMD) with low polarographically reducible impurities (PRI) from mixtures of HMD, aminocapronitirle and PRI'2001 5,961,788'Sequential distillation process for removing tetrahydroazepine from aminocapronitrile and/or hexamethylenediamine'1999 5,892,122'Method for making cyclohexanol and cyclohexanone'1999 5,312,959'Purification of 2-methylglutaronitrile or adiponitrile'1994 4,749,801'[Hexakis(pentenenitrilo)nickel II]bis-[.mu.-(cyano) bis(triphenylborane) (I)], its method of preparation and its use'1988 4,521,628'Recovery of arylboranes'1985 4,416,825'Preparation of zerovalent nickel complexes'1983 3,957,689'Process for preparing an attrition resistant zeolite hydrocarbon conversion catalyst'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Based in Baltimore, MD, US· patent location history

1983–2004Patents assigned to DU PONT (11)· patent assignee history

1983–2018Based in Orange, TX, US· patent location history

1999–2006Based in Wilmington, DE, US· patent location history

2005–2018Patents assigned to INVISTA NORTH AMERICA SARL (16)· patent assignee history

2012–2018Patents assigned to OSTERMAIER JOHN J (7)· patent assignee history

2015–2018Patents assigned to MEDHEKAR VINAY (2)· patent assignee history

2015–2018Patents assigned to SLATEN COLIN S (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
INVISTA NORTH AMERICA SARL	16	2005–2018
DU PONT	11	1983–2004
OSTERMAIER JOHN Jself	7	2012–2018
MEDHEKAR VINAY	2	2015–2018
SLATEN COLIN S	2	2015–2018

Locations

Location	Patents	Span
Orange, Texas, US	17	1983–2018
Wilmington, Delaware, US	10	1999–2006
Baltimore, Maryland, US	1	1976