Inventor
Henry C. Stevens
Inventor
Akron, OH, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds26%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds16%
C08LCompositions of macromolecular compounds16%
C07DHeterocyclic compounds11%
G02BOptical elements, systems or apparatus11%
A01NPreservation of bodies of humans or animals or plants or parts thereof5%
C07CAcyclic or carbocyclic compounds5%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
4,622,431'Method for converting organic chloroformate to the corresponding organic chloride'19864,360,653'Polymerizate of (allyl carbonate) and aliphatic polyurethane having acrylic unsaturation'19824,205,154'Triallyl carbonate polymers'19804,144,262'Triallyl carbonate monomers'19794,139,578'Bis (allyl carbonate) compositions and polymerizates therefrom'19794,060,403'Method of controlling weeds with N-(3-methyl-5-isothiazolyl)-2-methylpentanamide'19774,013,675'N-(3-methyl-5-isothiazolyl)-2-methylpentanamide'19773,988,261'Frozen organic peroxide emulsion'19763,980,464'Control of weeds with 5-propionylamino-3-methylisothiazole'19763,953,223'Siliceous pigment composition'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1986Patents assigned to PPG INDUSTRIES INC (10)· patent assignee history
1976–1986Based in Akron, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PPG INDUSTRIES INC | 10 | 1976–1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Akron, OH, US | 10 | 1976–1986 |