Inventor

Rashmikant Maganlal Contractor

Inventor

Wilmington, DE, US

Overview

1976–2002

Patent span

Performing operations

Primary field (CPC B)

Patents· 15 as inventor

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

B01Jprimary

B01JChemical or physical processes, e.g. catalysis or colloid chemistry28%

D04HMaking textile fabrics, e.g. from fibres or filamentary material28%

C07CAcyclic or carbocyclic compounds24%

Y02PClimate change mitigation technologies in the production or processing of goods12%

C07DHeterocyclic compounds4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

PatentTitleYear

6,437,193'Vapor phase oxidation of propylene to acrolein'2002 6,310,240'Vapor phase oxidation of acrolein to acrylic acid'2001 6,107,238'Process for manufacture and use of improved attrition resistant catalyst'2000 5,895,821'Process for the calcination/activation of V/P/O catalyst'1999 5,573,992'Process for the calcination/activation of V/P/O catalyst'1996 5,519,149'Vapor phase catalytic oxidation of N-butane to maleic anhydride incorporating in situ catalyst calcination/activation'1996 5,021,588'Vapor phase catalytic oxidation of butane to maleic anhydride'1991 4,668,802'Improved vapor phase catalytic oxidation of butane to maleic anhydride'1987 4,089,086'Air lay-down process for producing uniform lightweight webs from textile fibers'1978 4,069,563'Process for making nonwoven fabric'1978 4,064,597'Prevention of fibers from entering the pinch point between a rotating feed roll and a stationary shoe'1977 4,043,005'Process for forming a staple fiber batt'1977 4,024,612'Process for making an apertured nonwoven fabric'1977 3,981,047'Apparatus for forming a batt from staple fibers'1976 3,932,915'Air-laydown apparatus for forming uniform webs of staple fibers'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2002Patents assigned to DU PONT (15)· patent assignee history

1976–2002Based in Wilmington, DE, US· patent location history

1999Based in Ardentown, DE, US· patent location history

2000Based in Willmington, DE, US· patent location history

2001–2002Patents assigned to ATOFINA (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DU PONT	15	1976–2002
ATOFINA	2	2001–2002

Locations

Location	Patents	Span
Wilmington, Delaware, US	13	1976–2002
Willmington, Delaware, US	1	2000
Ardentown, Delaware, US	1	1999