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Inventor

David H. Davies

Inventor
Macclesfield, GB

Overview

50→
Patents
1976–2021
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.

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer13%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations8%
C07DHeterocyclic compounds7%
C12NMicroorganisms or enzymes7%
A61KPreparations for medical, dental or toiletry purposes6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
B82YSpecific uses or applications of nanostructures4%
C07HSugars4%
C07KPeptides4%
H04LTransmission of digital information, e.g. telegraphic communication4%
PatentTitleYear
11,000,511Chemical compounds as antibiotics202110,270,352Electrical energy conversion201910,174,311Compositions and methods for immunodominant antigens20199,297,803'Compositions and methods for immunodominant antigens'20168,685,621'First-side dual-layer optical data storage disk and method of manufacturing the same'20148,001,387'Removable storage medium with biometric access'20117,808,879'Optical disk drive with micro-SIL'20107,808,880'Optical disk drive with hybrid solid immersion objective lens'20107,675,835'Small form-factor optical data storage device'20107,554,898'Dual density disc with associated properties'20097,393,533'H3L envelope protein immunization methods and H3L envelope passive protection methods'20087,368,222'Optical data storage media with enhanced contrast'20086,980,652'Combination mastered and writeable medium and use in electronic internet appliance'20056,962,668'Double-sided digital optical disk and method and apparatus for making'20056,908,725'Double-sided hybrid optical disk with surface topology'20056,687,315'Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing'20046,580,683'Optical recording medium having a master data area and a writeable data area'20036,541,491'4-mercaptopyrrolidine derivatives as farnesyl transferase inhibitors'20036,436,691'Chemical compounds'20026,359,938'Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing'20026,232,338'4-Mercaptopyrrolidine derivatives as farnesyl transferase inhibitors'20016,043,947'Magnetic storage and reproducing system with a low permeability keeper and a self-biased magnetoresitive reproduce head'20005,985,281'Chemical compounds'19995,953,311'Timing synchronization in a receiver employing orthogonal frequency division multiplexing'19995,870,260'Magnetic recording system having a saturable layer and detection using MR element'19995,843,565'Particulate magnetic medium utilizing keeper technology and methods of manufacture'19985,830,590'Magnetic storage and reproducing system with a low permeability keeper and a self-biased magnetoresistive reproduce head'19985,232,918'Cephalosporin derivatives'19935,126,444'Intermediates for cephalosporin compounds'19925,064,824'Cephalosporin compounds'19915,019,570'Cephalosporin compounds'19914,819,632'Retrolasing catheter and method'19894,672,961'Retrolasing catheter and method'19874,597,451'Fire and explosion detection and suppression'19864,562,737'Ultrasonic testing'19864,499,477'Cover assembly for optical recording medium'19854,443,471'Derivatives of M.139,603 useful as growth promoters'19844,292,068'Herbicidal method'19814,279,894'Streptomyces metabolite'19814,225,593'Growth promotion'19804,180,565'1-N-substituted derivatives of 4,6-di-O-(aminoglycosyl)-1,3-diaminocyclitols'19794,156,833'Information display panel and method of fabrication'19794,149,885'Method of making electroluminescent display panel with enlarged active display areas'19794,141,974'Veterinary method employing certain aureolic acid compounds'19794,110,664'Electroluminescent bargraph with integral thin-film transistor control circuitry'19784,085,208'Process for preparing 4,6-di-O-(aminoglycosyl)-1,3-diaminocyclitols and novel 1-epimers and 1-N-alkyl derivatives produced thereby; methods for the use of the 1-epimer derivatives as antibacterial agents and compositions useful therefor'19784,066,752'1-Desamino-1-hydroxy and 1-desamino-1-epi-hydroxy-4,6-di-o-(aminoglycosyl)-1,3-diaminocyclitols; 1-desamino-1-oxo-4,6-di-o-(aminoglycosyl)-1,3-diaminocyclitols, intermediates and use as antibacterial agents'19784,009,328'Aminoglycoside 66-40C, method for its manufacture, method for its use as an intermediate in the preparation of known antibiotics and novel antibacterials'19774,006,383'Electroluminescent display panel with enlarged active display areas'19773,978,214'Novel 4,6-di-O-(aminoglycosyl)-2-deoxystreptamine, method for its manufacture, method for its use as an antiprotozoal agent and compositions useful thereof'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1979Patents assigned to SCHERING CORP (5)· patent assignee history
1976–2003Based in Macclesfield, GB· patent location history
1977–1979Patents assigned to WESTINGHOUSE ELECTRIC CORP (4)· patent assignee history
1984–1993Patents assigned to ICI PLC (5)· patent assignee history
1985–2000Based in Cupertino, CA, US· patent location history
1987–2014Based in Boulder, CO, US· patent location history
1998–2000Patents assigned to AMPEX (4)· patent assignee history
1999–2019Based in Bristol, GB· patent location history
2005–2010Patents assigned to DPHI ACQUISITIONS INC (8)· patent assignee history
2008–2019Based in Long Beach, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DPHI ACQUISITIONS INC82005–2010
ICI PLC51984–1993
SCHERING CORP51976–1979
AMPEX41998–2000
WESTINGHOUSE ELECTRIC CORP41977–1979
Locations
LocationPatentsSpan
Macclesfield, GB151976–2003
Boulder, CO, US121987–2014
Cupertino, California, US51985–2000
Bristol, GB41999–2019
Long Beach, California, US32008–2019