Inventor
Parameswar Sivaramakrishnan
Inventor
New Martinsville, WV, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds36%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients21%
C08LCompositions of macromolecular compounds21%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
C07CAcyclic or carbocyclic compounds7%
PatentTitleYear
4,605,774'Preparation of bis(4-hydroxyphenyl thio)benzenes'19864,448,950'Polycarbonate having improved critical thickness'19844,374,226'Polycarbonate having improved hydrolytic stability'19834,303,776'Bis(4-hydroxyphenyl sulfonylphenyl) bisphenyl disulfones and useful resins based thereon'19814,174,359'Flame retardant polycarbonate polyblends'19794,145,373'Stress crack resistant polycarbonates'19794,064,195'Modified aromatic polycarbonates'19774,043,980'Flame retardant polycarbonate having improved critical thickness'19774,017,457'Flame retardant polycarbonate compositions'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1984Patents assigned to MOBAY CHEMICAL CORP (8)· patent assignee history
1977–1986Based in New Martinsville, WV, US· patent location history
1986Patents assigned to MOBAY CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MOBAY CHEMICAL CORP | 8 | 1977–1984 |
| MOBAY CORP | 1 | 1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| New Martinsville, WV, US | 9 | 1977–1986 |