Inventor

John P. Lawrence

Inventor

Stow, OH, US

Overview

15→

Patents

1976–1998

Patent span

Chemistry

Primary field (CPC C)

Patents· 15 as inventor

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

C08Kprimary

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients38%

C07DHeterocyclic compounds17%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds13%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium8%

B60CVehicle tyres4%

C07CAcyclic or carbocyclic compounds4%

C08LCompositions of macromolecular compounds4%

F24DDomestic- or space-heating systems, e.g. central heating systems4%

F25BRefrigeration machines, plants or systems4%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications4%

PatentTitleYear

5,719,207'Silica reinforced rubber composition and tire with tread'1998 4,538,418'Heat pump'1985 4,365,051'Polyurethane prepared from diamine and prepolymer'1982 4,254,272'Aromatic diamines and polyurethanes cured thereby'1981 4,222,955'3,5-Diamino-4-tert.-alkylbenzonitriles'1980 4,110,319'Thiocarbamate additives for sulfur vulcanizable polymers'1978 4,087,440'N-(hydrocarbyl thiophosphoryldithio)-imide vulcanization agents and accelerators'1978 4,085,094'Inhibiting premature vulcanization of rubbers'1978 4,066,697'Process for preparing tetramethylthiuram tetrasulfide'1978 4,042,642'Urea additives for sulfur vulcanizable polymers'1977 4,042,641'Inhibiting premature vulcanization of rubbers with N-aryl-hydrocarbyldithio-formimidate'1977 4,017,489'Process of preparing unsymmetrical disulfides'1977 3,960,857'Urea additives for sulfur vulcanizable polymers'1976 3,944,552'N,N\'-bisimidothio-diamines'1976 3,935,219'Antimicrobial dihalonitromethylisoxazoles'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1998Patents assigned to GOODYEAR TIRE & RUBBER (13)· patent assignee history

1976Patents assigned to PURDUE RESEARCH LAB (1)· patent assignee history

1976–1982Based in Stow, OH, US· patent location history

1985Patents assigned to DEMARCO ENERGY SYSTEMS INC (1)· patent assignee history

1985Based in Austin, TX, US· patent location history

1998Based in Hudson, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GOODYEAR TIRE & RUBBER	13	1976–1998
DEMARCO ENERGY SYSTEMS INC	1	1985
PURDUE RESEARCH LAB	1	1976

Locations

Location	Patents	Span
Stow, OH, US	13	1976–1982
Hudson, OH, US	1	1998
Austin, Texas, US	1	1985