DW

Derek Walker

BR Bristol-Meyers: 15 patents #15 of 350Top 5%
SC Schering: 3 patents #883 of 2,442Top 40%
AS Antibioticos S.P.A.: 1 patents #26 of 103Top 30%
LL Lucas Industries Public Limited: 1 patents #218 of 571Top 40%
MP Millennium Pharmaceuticals: 1 patents #496 of 771Top 65%
Overall (All Time): #136,801 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 25 most recent of 28 patents

Patent #TitleCo-InventorsDate
12152320 Fire resistant textile material Thomas E. Hainsworth, Martin HAWORTH 2024-11-26
6955193 Fire resistant textile material Thomas E. Hainsworth 2005-10-18
6855833 Methods for producing amino substituted chromanes and intermediates thereof James Kanter, John Mullins, Robert M. Scarborough, Thomas Hense 2005-02-15
6699802 Fire resistant textile material Thomas E. Hainsworth 2004-03-02
5847116 Process for the preparation of intermediates useful in the synthesis of cephalosporins Junning Lee, Charles R. Martin, Haiyan Zhang, Loris Sogli, Ermanno Bernasconi +1 more 1998-12-08
5660711 Process for the preparation of intermediates useful in the synthesis of cephalosporins Junning Lee, Charles R. Martin, Haiyan Zhang, Loris Sogli, Ermanno Bernasconi +1 more 1997-08-26
5571910 Process for the preparation of intermediates useful in the synthesis of cephalosporins Junning Lee, Charles R. Martin, Haiyan Zhang, Loris Sogli, Ermanno Bernasconi 1996-11-05
4813114 Machining the ends of round bar and tube and similiar workpieces 1989-03-21
4790061 Machining the ends of lengths of wire and bar and similar workpieces 1988-12-13
4634322 Assembly for use in removing material from the ends of bars or the like workpieces 1987-01-06
4518773 """3-Carbamoyloxy cephalosporins""" Robert L. Cundall 1985-05-21
4426520 3-Carbamoyloxy-cepham-4-carboxylic acid derivatives Robert L. Cundall 1984-01-17
4424343 Preparation of 1-N-.omega.-amino-.alpha.-hydroxyalkanoyl!kanamycin polysilylates and products Martin J. Cron, John G. Keil, Jeng S. Lin, Mariano V. Ruggeri 1984-01-03
4407755 6-Amino penam derivatives Robert L. Cundall 1983-10-04
4374982 Cepham compounds Robert L. Cundall 1983-02-22
4351766 Production of penicillins Herbert H. Silvestri, Chester Sapino, David A. Johnson 1982-09-28
4347354 Preparation of 1-N-[.omega.-amino-.alpha.-hydroxyalkanoyl]aminoglycoside polysilylated antibiotics and products obtained therefrom Martin J. Cron, John G. Keil, Jeng S. Lin, Mariano V. Ruggeri 1982-08-31
4340344 Apparatus for manufacture of thermoplastics pipe William C. Aston 1982-07-20
4323535 Manufacture of thermoplastics pipe William C. Aston 1982-04-06
4322347 2-Carbamoyloxymethyl-penicillin derivatives Robert L. Cundall 1982-03-30
4318681 Manufacture of thermoplastics pipe William C. Aston 1982-03-09
4316017 Cephalosporin intermediates Herbert H. Silvestri, Chester Sapino, David A. Johnson 1982-02-16
4316016 Cephalosporin intermediates Herbert H. Silvestri, Chester Sapino, David A. Johnson 1982-02-16
4310459 Process for producing carbamoyl substituted penams and carbamoyl substituted cephams from penicillin sulfoxide esters Robert L. Cundall 1982-01-12
4310458 Production of penicillins Herbert H. Silvestri, Chester Sapino, David A. Johnson 1982-01-12