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USPTO Patent Rankings Data through Dec 31, 2025
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David Woodruff — 25 Patents

GE: 18 patents #1,615 of 36,430Top 5%
SBSabic Innovative Plastics B.V.: 6 patents #85 of 817Top 15%
SBSabic Global Technologies B.V.: 1 patents #849 of 1,595Top 55%
Saratoga Springs, NY: #22 of 363 inventorsTop 7%
New York: #5,198 of 115,490 inventorsTop 5%
Overall (All Time): #158,593 of 4,157,543Top 4%
25 Patents All Time
David Woodruff has been granted 25 US patents while listed as an inventor at GE. The first was granted in 1990 and the most recent in February 2017. David Woodruff ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list David Woodruff in Saratoga Springs, NY, US.

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9567232 Method for preparing sodium chloro-aluminate Albert Santo Stella, Sergei Kniajanski, Paul William Buckley, Barbara Ellen Miebach, Elliott West Shanklin +1 more 2017-02-14 $21,792,000
9181395 Optimized emulsion drying process for making micronized polyetherimide polymers Viswanathan Kalayaraman, Donald E. Owens, III, Norman Johnson, Albert Santo Stella, Paul Edward Howson 2015-11-10
8729214 Mixtures resulting from methods for purification of polyether polymers Beatriz Penalver Bernabe, Thomas Link Guggenheim, David Bruce Hall, Norman Johnson, Juan Justino Rodriguez Ordonez 2014-05-20
8592548 Method to prepare bis(haloimides) John Yupeng Gui, Norman Johnson, Thomas Link Guggenheim, James Manio Silva, Farid Fouad Khouri 2013-11-26
8372941 Method for purification of polyether polymers and mixtures resulting therefrom Beatriz Penalver Bernabe, Thomas Link Guggenheim, David Bruce Hall, Norman Johnson, Juan Justino Rodriguez Ordonez 2013-02-12
7902407 Method for preparation of salts of hydroxy-substituted aromatic compounds James Manio Silva, Thomas Link Guggenheim 2011-03-08
7772435 Method of forming a dry quaternary ammonium salt mixture Thomas Link Guggenheim, Paul Edward Howson, Farid Fouad Khouri, Lioba Maria Kloppenburg, Matthew Hal Littlejohn +3 more 2010-08-10
7714095 Phase transfer catalyzed method for preparation of polyetherimides Daniel J. Brunelle, Havva Acar, Farid Fouad Khouri, Thomas Link Guggenheim, Norman Johnson 2010-05-11
7125954 Method for producing polyether polymers Thomas Link Guggenheim, Norman Johnson, Ganesh Kailasam, Pradeep Nadkarni 2006-10-24 $29,133,000
7122619 Method of separating a polymer from a solvent Norberto Silvi, Mark Howard Giammattei, Jan Keulen, Paul R. Wilson, Paul William Buckley +1 more 2006-10-17 $28,044,000
7115785 Method for making salts hydroxy-substituted hydrocarbons Thomas Link Guggenheim, Daniel J. Brunelle, Lee H. Bergman, Norman Johnson, Matthew Hal Littlejohn +1 more 2006-10-03 $34,355,000
6949622 Method of separating a polymer from a solvent Norberto Silvi, Mark Howard Giammattei, Jan Keulen, Paul R. Wilson, Paul William Buckley +1 more 2005-09-27 $53,865,000
6790934 Method for purification of aromatic polyethers Norman Johnson, Raul Eduardo Ayala, Thomas Joseph Fyvie, Amy Rene Freshour, Peter D. Phelps +7 more 2004-09-14 $35,920,000
6630568 Method for purification of aromatic polyethers Norman Johnson, Raul Eduardo Ayala, Thomas Joseph Fyve, Amy Rene Freshour, Peter D. Phelps +1 more 2003-10-07 $51,954,000
5985368 Coating composition for metal-based substrates, and related processes D. Sangeeta, Lawrence E. Szala, Bangalore Aswatha Nagaraj, Daniel Scott McAtee, Clifford Spiro 1999-11-16 $106,940,000
5759932 Coating composition for metal-based substrates, and related processes D. Sangeeta, Lawrence E. Szala, Bangalore Aswatha Nagaraj, Daniel Scott McAtee, Clifford Spiro 1998-06-02 $38,889,000
5693742 Solventless method for making polyarylene ethers Dwain M. White, Margaret Louise Blohm, Sterling B. Brown 1997-12-02 $140,306,000
5629970 Emissivity enhanced x-ray target Robert D. Lillquist 1997-05-13 $57,802,000
5397396 Apparatus for chemical vapor deposition of diamond including thermal spreader Philip G. Kosky, Erik O. Einset 1995-03-14 $18,431,000
5372645 Method for determining thickness of chemical vapor deposited layers Thomas R. Fnthony, James F. Fleischer 1994-12-13 $25,357,000
5300313 Method for determining thickness of chemical vapor deposited layers Thomas R. Anthony, James F. Fleischer 1994-04-05 $10,794,000
5204891 Focal track structures for X-ray anodes and method of preparation thereof Minyoung Lee 1993-04-20 $7,818,000
5169685 Method for forming non-columnar deposits by chemical vapor deposition Joan M. Redwing, Rony A. Sanchez-Martinez 1992-12-08 $9,315,000
5148463 Adherent focal track structures for X-ray target anodes having diffusion barrier film therein and method of preparation thereof Minyoung Lee 1992-09-15 $21,509,000
4920012 Articles having coatings of fine-grained and/or equiaxed grain structure Joan M. Redwing 1990-04-24 $8,696,000