HJ

Howard Paul Withers, Jr.

Air Products And Chemicals: 18 patents #89 of 1,997Top 5%
AR Atlantic Richfield: 13 patents #28 of 1,061Top 3%
The Dow Chemical: 1 patents #2,215 of 4,115Top 55%
📍 Emmaus, PA: #14 of 365 inventorsTop 4%
🗺 Pennsylvania: #1,639 of 74,527 inventorsTop 3%
Overall (All Time): #113,686 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 1–25 of 32 patents

Patent #TitleCo-InventorsDate
9463978 Process for making trisilylamine Rajiv Krishan Agarwal, Sai-Hong Andrew Lo, Joseph T. Sluzevich, James Joseph Hart 2016-10-11
9284198 Process for making trisilylamine Rajiv Krishan Agarwal, Sai-Hong Andrew Lo, Joseph T. Sluzevich, James Joseph Hart 2016-03-15
8945367 Electrolytic apparatus, system and method for the safe production of nitrogen trifluoride James Joseph Hart, Reinaldo Mario Machado, Sai-Hong Andrew Lo, Edward Jay Cialkowski, Krishnakumar Jambunathan 2015-02-03
7087102 Process for purification of germane Philip Bruce Henderson 2006-08-08
7074378 Process for the purification of NF3 James Joseph Hart, Philip Bruce Henderson, Madhukar Bhaskara Rao, Hoshang Subawalla 2006-07-11
6790428 Process for the reduction or elimination of NH3/HF byproduct in the manufacture of nitrogen trifluoride Athanasios Tsirukis, John T. Lileck, Kenneth E. Fegley 2004-09-14
6686594 On-line UV-Visible light halogen gas analyzer for semiconductor processing effluent monitoring Bing Ji, Robert Gordon Ridgeway, Eugene Joseph Karwacki, Jr., Steven Rogers, Peter J. Maroulis +1 more 2004-02-03
6583048 Organosilicon precursors for interlayer dielectric films with low dielectric constants Jean Louise Vincent, Mark Leonard O'Neill, Scott Edward Beck, Raymond Nicholas Vrtis 2003-06-24
6514471 Removing fluorine from semiconductor processing exhaust gas Thomas Hsiao-Ling Hsiung 2003-02-04
6352676 Abatement of F2 using small particle fluidized bed Thomas Hsiao-Ling Hsiung 2002-03-05
6106790 Abatement of NF.sub.3 using small particle fluidized bed Thomas Hsiao-Ling Hsiung 2000-08-22
5959170 Methane conversion process 1999-09-28
5910294 Abatement of NF.sub.3 with metal oxalates John Giles Langan 1999-06-08
5637285 Process for nitrogen trifluoride synthesis Daniel G. Coronell, Thomas Hsiao-Ling Hsiung, Andrew J. Woytek 1997-06-10
5569151 Handling and delivery system for dangerous gases Eugene Joseph Karwacki, Jr., Arron D. Varn, Andrew J. Woytek 1996-10-29
5406017 Methane conversion process 1995-04-11
5286565 Oxidation resistant carbon and method for making same Robert A. Holzl, Vincent L. Magnotta, Paul N. Dyer 1994-02-15
4983373 Process for the production of high purity zirconium tetrafluoride and other fluorides Andrew J. Woytek, John T. Lileck 1991-01-08
4769508 Alkali promoted manganese oxide compositions containing titanium Robert G. Gastinger, John A. Sofranko 1988-09-06
4721828 Methane conversion 1988-01-26
4681867 Supported fischer-tropsch catalyst and method of making the catalyst Paul N. Dyer, Ronald Pierantozzi 1987-07-21
4670472 Fischer-Tropsch process Paul N. Dyer, Ronald Pierantozzi 1987-06-02
4670619 Methane conversion process C. Andrew Jones, John J. Leonard, John A. Sofranko, Anne Mae Gaffney 1987-06-02
4634800 Methane conversion process C. Andrew Jones, John J. Leonard, John A. Sofranko 1987-01-06
4629718 Alkali promoted manganese oxide compositions containing silica and/or alkaline earth oxides C. Andrew Jones, John J. Leonard, John A. Sofranko, E. William Breder, Jr., Marvin F. L. Johnson +1 more 1986-12-16