BW

Brian C. Witkowski

SC S.P.M. Flow Control: 25 patents #2 of 71Top 3%
SG Spm Oil & Gas: 9 patents #5 of 79Top 7%
Overall (All Time): #100,145 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 25 most recent of 34 patents

Patent #TitleCo-InventorsDate
12410869 Two-pin clapper check valve Nadiya Fuller 2025-09-09
12320434 Stabilized check valve Nadiya Fuller 2025-06-03
12222054 Swivel assembly formed of a corrosion-resistant material Jacob A. Bayyouk 2025-02-11
11530591 Large bore plug valve Nuder Said, Duc Thanh Tran 2022-12-20
11519530 Full-root-radius-threaded wing nut having increased wall thickness Bunhap Sam 2022-12-06
11512781 Clapper check valve with a valve seat seal member 2022-11-29
11421504 Hydraulic fracturing system, apparatus, and method Nadiya Fuller, Nuder Said, Duc Thanh Tran, Peter Walter 2022-08-23
11365819 Clapper valve Nadiya Fuller, Nuder Said 2022-06-21
11149885 Carburizing grade micro-alloy high pressure swivel joints Matt Treida, Ben Ward 2021-10-19
11149514 Hydraulic fracturing system, apparatus, and method Nadiya Fuller, Nuder Said, Duc Thanh Tran, Peter Walter 2021-10-19
10808488 Hydraulic fracturing system, apparatus, and method Nadiya Fuller, Nuder Said, Duc Thanh Tran, Peter Walter 2020-10-20
10753490 Clapper valve Nadiya Fuller, Nuder Said 2020-08-25
10557576 Full-root-radius-threaded wing nut having increased wall thickness Bunhap Sam 2020-02-11
10526862 Hydraulic fracturing system, apparatus, and method Nadiya Fuller, Nuder Said, Duc Thanh Tran, Peter Walter 2020-01-07
10197172 Clapper valve Nadiya Fuller, Nuder Said 2019-02-05
9964245 Swivel joint with uniform ball bearing requirements Mark D. Matzner 2018-05-08
9857807 Automated relief valve control system and method Matthew S. Baca 2018-01-02
9638337 Plug valve having preloaded seal segments Nuder Said 2017-05-02
D774495 Electronic device holder Matthew S. Baca 2016-12-20
9322243 Automated relief valve control system and method Matthew S. Baca 2016-04-26
9273543 Automated relief valve control system and method Matthew S. Baca 2016-03-01
9103448 Plug valve having preloaded seal segments Nuder Said 2015-08-11
D734434 Seal assembly Nuder Said 2015-07-14
8998168 Plug valve indicator Edward C. Kotapish 2015-04-07
8978695 Flowline flapper valve Nuder Said 2015-03-17