Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Nathan E. Stacy — 23 Patents

PPPhillips Petroleum: 16 patents #138 of 2,506Top 6%
Chevron: 5 patents #901 of 4,788Top 20%
Houston, TX: #813 of 21,073 inventorsTop 4%
Texas: #5,758 of 125,132 inventorsTop 5%
Overall (All Time): #178,160 of 4,157,543Top 5%
23 Patents All Time
Nathan E. Stacy has been granted 23 US patents while listed as an inventor at Phillips Petroleum. The first was granted in 1994 and the most recent in January 2017. Nathan E. Stacy ranks #178,160 of 4,157,543 US inventors in our database (top 4.3%). Patent records list Nathan E. Stacy in Houston, TX, US.

Patents per Year

Patents granted per year, 1994 to 2017Bar chart with a peak of 6 patents in 1995.peak 61994: 1 patents19941995: 6 patents1996: 3 patents19961998: 1 patents1999: 1 patents19992000: 1 patents2001: 2 patents20012002: 2 patents2004: 2 patents20042006: 1 patents2013: 1 patents20132015: 1 patents2017: 1 patents2017

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9550869 Styrene butadiene block copolymers for film applications John Mark Brown, Carleton E. Stouffer, John D. Wilkey, Michael A. Smith 2017-01-24
9040628 Styrene butadiene block copolymers for film applications John Mark Brown, Michael A. Smith, Carleton E. Stouffer, John D. Wilkey 2015-05-26
8415429 Styrene butadiene block copolymers for film applications John Mark Brown, Michael A. Smith, Carleton E. Stouffer, John D. Wilkey 2013-04-09
7037980 Monovinylarene/conjugated diene copolymers having lower glass transition temperatures Larry L. Nash, John D. Hottovy 2006-05-02
6835778 Conjugated diene/monovinylarene block copolymers blends Gregory M. Swisher, Vergil Rhodes, Craig D. DePorter, George A. Moczygemba 2004-12-28
6730637 Reducing fluid loss in a drilling fluid Wayne S. Stewart, Kelly B. Fox, Bharat B. Patel, Sam B. Ledbetter, JR., Alvin Evans, Jr. 2004-05-04
6444755 Conjugated diene/monovinylarene block copolymers blends Craig D. DePorter, George A. Moczygemba 2002-09-03 $130,484,000
6420486 Conjugated diene/monovinylarene block copolymers, methods for preparing same, and polymer blends Craig D. DePorter, George A. Moczygemba 2002-07-16 $32,342,000
6265484 Tapered block copolymers of monovinylarenes and conjugated dienes William J. Trepka, George A. Moczygemba, Ralph C. Farrar 2001-07-24 $41,875,000
6265485 Tapered block copolymers of monovinylarenes and conjugated dienes William J. Trepka, George A. Moczygemba, Ralph C. Farrar 2001-07-24 $41,875,000
6096828 Conjugated diene/monovinylarene block copolymers, methods for preparing same, and polymer blends Craig D. DePorter, George A. Moczygemba 2000-08-01 $60,783,000
5910546 Tapered block copolymers of monivinylarenes and conjugated dienes William J. Trepka, George A. Moczygemba, Ralph C. Farrar 1999-06-08 $101,728,000
5705569 Block copolymers of monovinylarenes and conjugated dienes and preparation thereof George A. Moczygemba, Larry L. Nash, William J. Trepka, Craig D. DePorter, Ralph C. Farrar +1 more 1998-01-06 $8,479,000
5587425 Blends of copolymers of monovinylarenes and conjugated dienes containing two interior tapered blocks George A. Moczygemba, Nancy R. Knight, William J. Trepka 1996-12-24 $30,667,000
5545690 Tapered block copolymers of monovinylarenes and conjugated dienes William J. Trepka, George A. Moczygemba, Ralph C. Farrar 1996-08-13 $28,391,000
5522497 Combined toothpaste holder and vented toothbrush container 1996-06-04
5438103 Block copolymers of monovinylaromatic and conjugated diene monomers Craig D. DePorter, Ralph C. Farrar, George A. Moczygemba 1995-08-01 $14,381,000
5436298 Block copolymers of monovinylarenes and conjugated dienes and preparation thereof George A. Moczygemba, Larry L. Nash, William J. Trepka, Craig D. DePorter, Ralph C. Farrar +1 more 1995-07-25 $10,701,000
5422389 Method for stabilizing monovinylarene/conjugated diene copolymers and a method for preparing a stabilizing mixture William J. Trepka, Larry L. Nash, John R. Bohannan, George A. Moczygemba, Craig D. DePorter +2 more 1995-06-06 $44,177,000
5399628 Block copolymers of monovinylarenes and conjugated dienes containing two interior tapered blocks George A. Moczygemba, Nancy R. Knight, William J. Trepka 1995-03-21 $8,687,000
5393838 Conjugated diene/monovinylarene block copolymers with multiple tapered blocks George A. Moczygemba, Nancy R. Knight 1995-02-28 $13,365,000
5384349 Conjugated diene/monovinylarene copolymers and preparation thereof William J. Trepka, George A. Moczygemba 1995-01-24 $51,179,000
5290875 Conjugated diene/monovinylarene block copolymers with multiple tapered blocks George A. Moczygemba, Nancy R. Knight 1994-03-01 $10,490,000