Stephen Donald Langdon

Person

Arthur, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Crossbow
- Patent number 12,130,114
- Issue date Oct 29, 2024
- EXCALIBUR CROSSBOW, LLC
- Kyle Egerdee
- F41 - WEAPONS
Information Patent Grant
Trigger assembly for a crossbow
- Patent number 11,768,051
- Issue date Sep 26, 2023
- EXCALIBUR CROSSBOW, LLC
- Kyle William Egerdee
- F41 - WEAPONS
Information Patent Grant
Crossbow having trigger mechanism with arrow retention
- Patent number 11,629,943
- Issue date Apr 18, 2023
- EXCALIBUR CROSSBOW, LLC
- Stephen Langdon
- F41 - WEAPONS
Information Patent Grant
Rear arrow nock with retention
- Patent number 11,385,033
- Issue date Jul 12, 2022
- EXCALIBUR CROSSBOW, INC.
- Stephen Langdon
- F41 - WEAPONS
Information Patent Grant
Multiple-shot crossbow
- Patent number 11,143,482
- Issue date Oct 12, 2021
- EXCALIBUR CROSSBOW, INC.
- Kyle William Egerdee
- F41 - WEAPONS
Information Patent Grant
Anti-dry-fire mechanism for a crossbow
- Patent number 11,015,892
- Issue date May 25, 2021
- EXCALIBUR CROSSBOW, INC.
- Cole J. Jessup
- F41 - WEAPONS
Information Patent Grant
Crossbow with detachable limb assembly
- Patent number 10,830,553
- Issue date Nov 10, 2020
- EXCALIBUR CROSSBOW, INC.
- Kyle William Egerdee
- F41 - WEAPONS
Information Patent Grant
Safety wrist strap for a crossbow crank handle
- Patent number 10,041,755
- Issue date Aug 7, 2018
- EXCALIBUR CROSSBOW, INC.
- Stephen Donald Langdon
- F41 - WEAPONS
Information Patent Grant
Mechanism for drawing, cocking, and triggering a crossbow
- Patent number 9,958,232
- Issue date May 1, 2018
- EXCALIBUR CROSSBOW, INC.
- Kyle William Egerdee
- F41 - WEAPONS

Patents Applicationslast 30 patents

Information Patent Application
CROSSBOW
- Publication number 20240011732
- Publication date Jan 11, 2024
- Excalibur Crossbow, LLC
- Kyle Egerdee
- F41 - WEAPONS
Information Patent Application
CROSSBOW HAVING TRIGGER MECHANISM WITH ARROW RETENTION
- Publication number 20230251067
- Publication date Aug 10, 2023
- Excalibur Crossbow, LLC
- Stephen Langdon
- F42 - AMMUNITION BLASTING
Information Patent Application
CROSSBOW HAVING TRIGGER MECHANISM WITH ARROW RETENTION
- Publication number 20220341717
- Publication date Oct 27, 2022
- Excalibur Crossbow, Inc.
- Stephen Langdon
- F42 - AMMUNITION BLASTING
Information Patent Application
MULTIPLE-SHOT CROSSBOW
- Publication number 20210404762
- Publication date Dec 30, 2021
- Excalibur Crossbow, Inc.
- Kyle William Egerdee
- F41 - WEAPONS
Information Patent Application
REAR ARROW NOCK WITH RETENTION
- Publication number 20210302139
- Publication date Sep 30, 2021
- Excalibur Crossbow, Inc.
- Stephen Langdon
- F42 - AMMUNITION BLASTING
Information Patent Application
MULTIPLE-SHOT CROSSBOW
- Publication number 20200224993
- Publication date Jul 16, 2020
- Excalibur Crossbow, Inc.
- Kyle William Egerdee
- F41 - WEAPONS
Information Patent Application
CROSSBOW WITH DETACHABLE LIMB ASSEMBLY
- Publication number 20200191518
- Publication date Jun 18, 2020
- Excalibur Crossbow, Inc.
- Kyle William Egerdee
- F41 - WEAPONS

Stephen Donald Langdon

Person

Patents Grantslast 30 patents

Crossbow

Trigger assembly for a crossbow

Crossbow having trigger mechanism with arrow retention

Rear arrow nock with retention

Multiple-shot crossbow

Anti-dry-fire mechanism for a crossbow

Crossbow with detachable limb assembly

Safety wrist strap for a crossbow crank handle

Mechanism for drawing, cocking, and triggering a crossbow

Patents Applicationslast 30 patents

CROSSBOW

CROSSBOW HAVING TRIGGER MECHANISM WITH ARROW RETENTION

CROSSBOW HAVING TRIGGER MECHANISM WITH ARROW RETENTION

MULTIPLE-SHOT CROSSBOW

REAR ARROW NOCK WITH RETENTION

MULTIPLE-SHOT CROSSBOW

CROSSBOW WITH DETACHABLE LIMB ASSEMBLY