Inventor
Thomas A. Johnson
Inventor
Orefield, PA, US
Overview
Patents· 32 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds49%
C07DHeterocyclic compounds18%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
C02FTreatment of water, waste water, sewage, or sludge4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
A01NPreservation of bodies of humans or animals or plants or parts thereof2%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds2%
G01GWeighing2%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure2%
PatentTitleYear
11,068,601Bridge computing device control in local networks of interconnected devices202110,908,039Load cell assembly including cavities to buffer horizontal shear forces20216,395,188'Treatment of water containing organic wastes with ammonium nitrate'20026,332,986'Treatment of water containing organic wastes with ammonium nitrate'20015,919,979'Preparation of alkyl formamides'19995,869,653'Hydrogenation of nitriles to produce amines'19995,769,959'Process for removing insoluable N-vinyl amide polymer from equipment'19985,081,305'Process for the preparation of bis(aminopropoxy)alkanes'19925,075,507'Process for the preparation of bis(aminopropyl)aliphatic glycols'19915,072,046'Bis-[aminophenyl ketones] compounds'19914,990,672'Propylene-linked polyethylene polyamines and a process for making same'19914,943,633'Catalytic preparation of cyanoalkyl lactams'19904,918,233'Production of ethylenediamine from monoethanolamine and ammonia'19904,864,045'Production of aminoethyl hydrogen sulfate'19894,766,247'Color reduction of polyamines by mild catalytic hydrogenation'19884,720,588'Polyalkylene polyamines via vapor phase reaction using inert gas'19884,709,028'Synthesis of heterocyclic amines via the reaction of dialkylene glycol and ammonia'19874,618,716'Preparation of polyethylene polyamines from 2-aminoethyl sulfuric acid'19864,617,418'Polyalkylene polyamines via vapor phase reaction'19864,605,770'Noncyclic polyalkylene polyamines by the reaction of an alkanolamine compound and an alkyleneamine compound in the presence of a Group IIA or Group IIIB metal acid phosphate catalyst'19864,597,911'Production of amino aliphatic and cycloaliphatic hydrogen sulfates'19864,578,517'Polyalkylene polyamines from alkanolamine and ammonia or amines using group IIIB metal acid phosphate catalysts'19864,560,798'Production of aminoethylethanolamine using rare earth metal or strontium hydrogen phosphates as catalysts'19854,503,253'Production of noncyclic polyalkyene polyamines'19854,463,193'Production of noncyclic polyalkylene polyamines'19844,399,308'Lewis acid halide catalysts for preparation of polyamines'19834,394,524'Preparation of polyalkylene polyamines from ammonia, alkyleneamine, and alkanolamine'19834,362,886'Preparation of linear polyalkylene polyamines using metal catalyst'19824,316,841'Reforming linear polyamines'19824,316,840'Reforming linear polyamines'19824,314,083'Preparation of linear polyalkylene polyamines'19824,224,249'Toluene diamine from non-washed dinitrotoluene'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–2002Patents assigned to AIR PROD & CHEM (28)· patent assignee history
1980–2002Based in Orefield, PA, US· patent location history
1989Patents assigned to FORD MICHAEL E (1)· patent assignee history
1989Patents assigned to JOHNSON THOMAS A (1)· patent assignee history
2021Patents assigned to DELPHIAN SYSTEMS LLC (1)· patent assignee history
2021Patents assigned to ILLINOIS TOOL WORKS (1)· patent assignee history
2021Based in Lake in the Hills, IL, US· patent location history
2021Based in Winnebago, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AIR PROD & CHEM | 28 | 1980–2002 |
| DELPHIAN SYSTEMS LLC | 1 | 2021 |
| FORD MICHAEL E | 1 | 1989 |
| ILLINOIS TOOL WORKS | 1 | 2021 |
| JOHNSON THOMAS Aself | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Orefield, Pennsylvania, US | 30 | 1980–2002 |
| Lake in the Hills, Illinois, US | 1 | 2021 |
| Winnebago, Minnesota, US | 1 | 2021 |