Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
AK

Anil Kumar — 188 Patents

TOTransitions Optical: 111 patents #1 of 143Top 1%
POPpg Industries Ohio: 24 patents #44 of 1,316Top 4%
CRCouncil Of Scientific And Industrial Research: 18 patents #21 of 4,648Top 1%
MPMankind Pharma: 8 patents #1 of 22Top 5%
PIPpg Industries: 6 patents #169 of 1,216Top 15%
GTGreenmantra Recycling Technologies: 3 patents #5 of 11Top 50%
NDNational Oilwell Dht: 3 patents #13 of 91Top 15%
BHBaker Hughes Holdings: 2 patents #1,327 of 3,522Top 40%
MGMann+Hummel Gmbh: 1 patents #458 of 832Top 60%
SASandia: 1 patents #980 of 2,107Top 50%
Basf Se: 1 patents #8,065 of 13,826Top 60%
UIUniversity Of Illinois: 1 patents #1,280 of 3,009Top 45%
Murrysville, PA: #1 of 521 inventorsTop 1%
Pennsylvania: #32 of 74,527 inventorsTop 1%
Overall (All Time): #3,879 of 4,157,543Top 1%
188 Patents All Time
Anil Kumar has been granted 188 US patents while listed as an inventor at Transitions Optical. The first was granted in 1991 and the most recent in December 2025. Anil Kumar ranks #3,879 of 4,157,543 US inventors in our database (top 0.09%). Patent records list Anil Kumar in Murrysville, PA, US.

Patents per Year

Patents granted per year, 1996 to 2025Bar chart with a peak of 14 patents in 2008.peak 141996: 3 patents19961997: 7 patents1998: 3 patents1999: 3 patents19992000: 6 patents2001: 1 patents2002: 4 patents20022003: 1 patents2004: 5 patents2005: 2 patents20052006: 9 patents2007: 6 patents2008: 14 patents20082009: 9 patents2010: 4 patents2011: 10 patents20112012: 2 patents2013: 7 patents2014: 10 patents20142015: 10 patents2016: 7 patents2017: 2 patents20172018: 8 patents2019: 6 patents2020: 10 patents20202021: 5 patents2022: 8 patents2023: 6 patents20232024: 4 patents2025: 10 patents2025

Issued Patents All Time

Showing 1–25 of 188 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12504568 Photochromic-dichroic articles Henry Nguyen, Cory S. Brown, Alan M. Grubb, Ramaiahgari Reddy, Yannian Li 2025-12-23
12503543 Curable photochromic polycarbodiimide compositions Ramaiahgari Reddy, Brad S. Veldkamp 2025-12-23
12492343 Mesogen compounds Yannian Li, Ramaiahgari Reddy, Alan M. Grubb 2025-12-09
12360401 Photochromic film laminate Brad S. Veldkamp, Ramaiahgari Reddy, David John Park, Brian Smyth 2025-07-15
12319862 Method for preparing a coated article Meng He, Brad S. Veldkamp, Robin Lee Evans 2025-06-03
12304865 Development of alcoholic sucrose-based superplasticizer for geo-polymeric concrete and its process thereof Manish Mudgal, Ramesh Kumar Chouhan, Archana Singh, Avanish Kumar Srivastava 2025-05-20
12271066 Electroactive optical device Eric M. King, Truman F. Wilt 2025-04-08
12247168 Curable photochromic compositions including an oxazoline functional material Ramaiahgari Reddy, Brad S. Veldkamp 2025-03-11
12242090 Multi-stage optical article Sandrine Guillermin 2025-03-04
12234402 Mesogen compounds Ramaiahgari Reddy, Alan M. Grubb, Yannian Li, Suvagata Tripathi 2025-02-25
12163045 Photochromic composition with polyol and poly(anhydride) Ramaiahgari Reddy, Brad S. Veldkamp 2024-12-10
12097521 Apparatus and method for precision coating of ophthalmic lenses with photochromic coatings Elizabeth A. Zezinka, Cathy A. Taylor, Michael Frank Haley, Brian Smyth, David John Park +1 more 2024-09-24
12076951 Method of making optical articles having gradient light influencing properties David John Park, Delwin S. Jackson, John S. Ligas, Philip Miller, Brian Smyth 2024-09-03
12055741 Optical articles and method of preparing the same David John Park, Brian Smyth, Delwin S. Jackson, Henry Nguyen, John S. Ligas +1 more 2024-08-06
11819577 Fixed dose pharmaceutical composition of valsartan and sacubitril Bharat B. Sharma, K. S. Hareen, P. V. S Narasimham 2023-11-21
11773326 Mesogen compounds Ramaiahgari Reddy, Alan M. Grubb, Yannian Li, Suvagata Tripathi 2023-10-03
11714220 Optical article with gradient light influencing properties and method of making the same Philip Miller, Delwin S. Jackson, John S. Ligas, David John Park, Brian Smyth 2023-08-01
11707502 Stable pharmaceutical composition of vasopressin Saurabh Kumar, Ankush GUPTA, Hanumant GAMBHIRE, Raghuveera H. G, P. V. S Narasimham 2023-07-25
11673355 Method of manufacture of a lens with gradient properties using imbibition technology Brian Smyth, David John Park 2023-06-13
11609442 System and method for customization of a photochromic article David John Park, Brian Smyth 2023-03-21
11525087 Dielectric devices and methods of fabrication Cynthia Kutchko, Zoubeida Ounaies, Hassene Ben Atitallah, Nicholas Martin Wyckoff, Romain Stalder +1 more 2022-12-13 $178,877,000
11478999 Pultrusion process of forming multi-layered structures of dissimilar materials using a multi-die pultrusion device Matthew Parkinson, Elias Ruda Shakour, Sergio Franyutti 2022-10-25
11453654 Photochromic indeno fused phenanthrenopyran compounds Darrin R. Dabideen, Shengwen Yuan, Massimiliano Tomasulo 2022-09-27
11446697 Method for imparting an optical element with a light influencing property in a gradient pattern David John Park, Brian Smyth 2022-09-20
11382866 Fixed dose pharmaceutical composition of valsartan and sacubitril Bharat B. Sharma, K. S. Hareen, P. V. S Narasimham 2022-07-12