Inventor
William B. Fisher
Inventor
Chester, VA, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds24%
C01BNon-metallic elements12%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons12%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry9%
C07DHeterocyclic compounds9%
B01DSeparation6%
G01BMeasuring length, thickness or similar linear dimensions6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
C01GCompounds containing metals not covered by subclasses c01d or c01f3%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds3%
PatentTitleYear
7,166,752'Decomposition of cumene oxidation product'20075,889,142'Selective polyamide recovery from multi-component materials'19995,131,984'High quality phenol rectification with energy recovery'19924,996,036'Abatement of NO.sub.x from hydroxylamine disulfonate process'19914,851,086'Production of high purity phenol by steam distillation'19894,767,503'Removal of light impurities from caprolactam by distillation with water'19884,692,321'Oxidation of ammonia over a mixed catalyst bed of cobalt and aluminum oxides'19874,582,642'Recovery of caprolactam from process residues'19864,410,755'Method to purify alpha-methyl styrene prior to catalytic hydrogenation'19834,389,339'Process for making a cobalt oxide catalyst'19834,311,642'Recovery of caprolactam from nylon 6 oligomers'19824,233,279'Process for the synthesis of ammonium nitrite'19804,200,553'Process for producing cyclohexanone'19804,164,515'Production of cyclohexanone'19794,162,267'Production of cyclohexanone'19794,092,360'Production of cyclohexanone'19784,045,534'Process for melt-spinning synthetic fibers'19774,001,359'Testing and correcting metering accuracy of multihole spinnerets'19773,936,253'Apparatus for melt-spinning synthetic fibers'19763,930,775'Testing and correcting metering accuracy of multihole spinnerets'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1980Patents assigned to ALLIED CHEM (9)· patent assignee history
1976–2007Based in Chester, VA, US· patent location history
1982–1989Patents assigned to ALLIED CORP (7)· patent assignee history
1989Patents assigned to LUMMUS CO (1)· patent assignee history
1991–1999Patents assigned to ALLIED SIGNAL INC (3)· patent assignee history
2007Patents assigned to SUNOCO INC R&M (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ALLIED CHEM | 9 | 1976–1980 |
| ALLIED CORP | 7 | 1982–1989 |
| ALLIED SIGNAL INC | 3 | 1991–1999 |
| LUMMUS CO | 1 | 1989 |
| SUNOCO INC R&M | 1 | 2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chester, Virginia, US | 20 | 1976–2007 |