The patent application was filed by Denton W. McAlister for a multijunction solar cell with bonded transparent conductive interlayer. It was filed on Dec. 13, 2005 before being approved on Dec. 28, 2021.
Though patents are required for inventions and products, the granting of a patent is not a guarantee for success. Dennis Crouch, co-director of the Center for Intellectual Property & Entrepreneurship, said roughly 50 percent of patents expire prematurely due to costs.
There were 62 patents granted for Los Angeles inventors in December.
Longest patent application periods in Los Angeles for December
| Applicant Name | Days to be Granted |
|---|---|
| Denton W. McAlister | 5,859 |
| University of Southern California | 2,420 |
| NovaSignal Corporation | 2,017 |
| Silvia R. Da Costa | 1,964 |
| Cedars-Sinai Medical Center | 1,881 |
| OMS Investments, Inc. | 1,754 |
| University of Southern California | 1,680 |
| Surgical Theater, Inc. | 1,558 |
| Hai Kaner | 1,261 |
| Aniya's Production Company | 1,204 |
| The Hair Shop, Inc. | 1,173 |
| Cedars-Sinai Medical Center | 1,160 |
| Divergent Technologies, Inc. | 1,148 |
| Bruin Biometrics, LLC | 1,117 |
| DMAI, Inc. | 1,033 |
| HI, LLC | 1,023 |
| Divergent Technologies, Inc. | 977 |
| Yuan Cheng | 969 |
| Henry Schellhorn | 969 |
| Nanodian | 963 |
| Engage Medical Holdings, LLC | 896 |
| Christopher V. Beckman | 869 |
| Benjamin Ernest Helois Jayol | 849 |
| Nanotech Energy, Inc. | 820 |
| Rollo Pet Company, LLC | 820 |
| Hyperloop Technologies, Inc. | 810 |
| HIA Technologies, Inc. | 802 |
| Tung, Inc. | 753 |
| Frequency IP Holdings, LLC | 741 |
| Sergio Lara Pereira Monteiro | 726 |
| Antonio Augusto Ribeiro Reis | 725 |
| Francis E. Fendell | 721 |
| Geo Plastics | 701 |
| University of Southern California | 659 |
| Roberto Abelardo Cabral Herrera | 627 |
| Rehrig Pacific Company | 624 |
| Addaday, Inc. | 609 |
| EcoSense Lighting, Inc. | 573 |
| Curogram, Inc. | 573 |
| EcoSense Lighting, Inc. | 565 |
| EcoSense Lighting, Inc. | 565 |
| SBCD Enterprises, LLC | 519 |
| SBCD Enterprises, LLC | 519 |
| Shin Hwun Kang | 518 |
| SBCD Enterprises, LLC | 511 |
| Bytedance, Inc. | 497 |
| Cedars-Sinai Medical Center | 476 |
| Bytedance, Inc. | 467 |
| Edward D. Ioli Trust | 435 |
| Bytedance, Inc. | 420 |
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