Inventor

David M. Barnes

Inventor
Columbus, IN, US

Overview

50→
Patents
2001–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 50 as inventor

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

C07Dprimary
C07DHeterocyclic compounds16%
C07CAcyclic or carbocyclic compounds10%
A61KPreparations for medical, dental or toiletry purposes9%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations8%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry7%
F01LCyclically operating valves for machines or engines5%
Y02TClimate change mitigation technologies related to transportation5%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%
F02FCylinders, pistons or casings, for combustion engines4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
PatentTitleYear
11,041,318Load transfer plate apparatus2021D0922719Load transfer plate pocket202110,808,579Hybrid valve train system202010,794,449Variable counterweight202010,697,332Eccentric hydraulic lash adjuster for use with compression release brake202010,329,276Salt and crystalline forms thereof of a drug201910,024,247Engine brake lever201810,001,035Hydraulic lash adjuster20189,915,222'Diesel piston with semi-hemispherical crown'20189,873,681Salt and crystalline forms thereof of a drug20189,810,177'Internal combustion engine'20179,739,186'Engine lubrication system'20179,732,045'Process for preparing antiviral compounds'20179,669,399'Phosphine ligands for catalytic reactions'20179,539,250'Salt and crystalline forms thereof of a drug'20179,470,177'Cylinder head for internal combustion engine'20169,434,698'Process for preparing antiviral compounds'20169,381,508'Phosphine ligands for catalytic reactions'20169,347,363'Fluid pump assembly'20169,266,913'Phosphine ligands for catalytic reactions'20169,255,074'Process for preparing antiviral compounds'20169,222,375'Variable valve actuation apparatus, system, and method'20159,217,489'Nutating balancer for internal combustion engine'20159,200,021'Phosphine ligands for catalytic reactions'20159,132,725'Vehicle and hybrid drive system'20158,975,443'Phosphine ligands for catalytic reactions'20158,969,569'Salt and crystalline forms thereof of a drug'20158,950,374'Cylinder head for internal combustion engine'20158,927,723'Preparation of pyridonecarboxylic acid antibacterials'20158,895,737'Process for preparing antiviral compounds'20148,841,487'Phosphine ligands for catalytic reactions'20148,833,324'Inertia assisted engine cranking'20148,821,342'Accessory drive motor configuration'20148,789,502'Variable valve actuation system and method using variable oscillating cam'20148,707,914'Engine having integrated waste heat recovery'20148,678,116'Accessory drive configuration'20148,667,939'Variable valve actuation apparatus, system and method'20148,648,093'Salt and crystalline forms thereof of a drug'20148,648,196'Preparation of pyridonecarboxylic acid antibacterials'20148,399,468'Octahydro-pyrrolo[3,4-B]pyrrole derivatives'20138,377,913'Vitamin D receptor activators and methods of making'20138,299,254'Preparation of pyridonecarboxylic acid antibacterials'20128,273,892'Salt and crystalline forms thereof of a drug'20128,252,813'Salt and crystalline forms thereof of a drug'20127,883,701'Method for enhancing growth or increasing feed efficiency through reducing binding between endotoxin and its receptor in the gastrointestinal tract'20117,728,143'Salt and crystalline forms thereof of a drug'20107,576,216'Preparation of pyridonecarboxylic acid antibacterials'20097,491,718'Sulfonamides having antiangiogenic and anticancer activity'20097,095,018'Deposition of samples and sample matrix for enhancing the sensitivity of matrix assisted laser desorption/ionization mass spectrometry'20066,329,536'Stereoselective process for producing nitro compounds'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2013Patents assigned to ABBOTT LAB (8)· patent assignee history
2001–2019Based in Lake Villa, IL, US· patent location history
2011Based in Oregon, WI, US· patent location history
2012–2016Patents assigned to BARNES DAVID M (18)· patent assignee history
2013–2019Patents assigned to ABBVIE INC (17)· patent assignee history
2013–2017Based in Bristol, WI, US· patent location history
2014–2020Patents assigned to CUMMINS INC (13)· patent assignee history
2014–2017Patents assigned to CUMMINS IP INC (8)· patent assignee history
2014–2020Based in Columbus, IN, US· patent location history
2021Based in Manly, AU· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BARNES DAVID Mself182012–2016
ABBVIE INC172013–2019
CUMMINS INC132014–2020
ABBOTT LAB82001–2013
CUMMINS IP INC82014–2017
Locations
LocationPatentsSpan
Columbus, IN, US202014–2020
Lake Villa, Illinois, US152001–2019
Bristol, WI, US112013–2017
Manly, AU22021
Oregon, WI, US12011